20361104642340 has 144 divisors (see below), whose sum is σ = 77001995790720. Its totient is φ = 4230878883840.

The previous prime is 20361104642297. The next prime is 20361104642399. The reversal of 20361104642340 is 4324640116302.

20361104642340 is a `hidden beast` number, since 2 + 0 + 3 + 6 + 1 + 1 + 0 + 4 + 642 + 3 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20361104642295 and 20361104642304.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 734513725 + ... + 734541444.

It is an arithmetic number, because the mean of its divisors is an integer number (534736081880).

Almost surely, 2^{20361104642340} is an apocalyptic number.

20361104642340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20361104642340 is an abundant number, since it is smaller than the sum of its proper divisors (56640891148380).

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

20361104642340 is a wasteful number, since it uses less digits than its factorization.

20361104642340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469055202 (or 1469055197 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

Adding to 20361104642340 its reverse (4324640116302), we get a palindrome (24685744758642).

The spelling of 20361104642340 in words is "twenty trillion, three hundred sixty-one billion, one hundred four million, six hundred forty-two thousand, three hundred forty".