620621433120 has 96 divisors (see below), whose sum is σ = 2105338882752. Its totient is φ = 152768351232.

The previous prime is 620621433109. The next prime is 620621433127. The reversal of 620621433120 is 21334126026.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (620621433127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49723042 + ... + 49735521.

It is an arithmetic number, because the mean of its divisors is an integer number (21930613362).

Almost surely, 2^620621433120 is an apocalyptic number.

620621433120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

620621433120 is an abundant number, since it is smaller than the sum of its proper divisors (1484717449632).

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

620621433120 is a wasteful number, since it uses less digits than its factorization.

620621433120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99458594 (or 99458586 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 620621433120 its reverse (21334126026), we get a palindrome (641955559146).

The spelling of 620621433120 in words is "six hundred twenty billion, six hundred twenty-one million, four hundred thirty-three thousand, one hundred twenty".