245115241105220 has 24 divisors (see below), whose sum is σ = 514742917915800. Its totient is φ = 98045922804992.

The previous prime is 245115241105187. The next prime is 245115241105249. The reversal of 245115241105220 is 22501142511542.

245115241105220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2314584933376 + 242800656171844 = 1521376^2 + 15582062^2 .

It is a super-2 number, since 2×245115241105220² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1041146 + ... + 22165614.

It is an arithmetic number, because the mean of its divisors is an integer number (21447621579825).

Almost surely, 2^{245115241105220} is an apocalyptic number.

245115241105220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245115241105220 is an abundant number, since it is smaller than the sum of its proper divisors (269627676810580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245115241105220 is a wasteful number, since it uses less digits than its factorization.

245115241105220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21704647 (or 21704645 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 35.

Adding to 245115241105220 its reverse (22501142511542), we get a palindrome (267616383616762).

The spelling of 245115241105220 in words is "two hundred forty-five trillion, one hundred fifteen billion, two hundred forty-one million, one hundred five thousand, two hundred twenty".