620404899168 has 24 divisors (see below), whose sum is σ = 1628562860568. Its totient is φ = 206801633024.

The previous prime is 620404899119. The next prime is 620404899181. The reversal of 620404899168 is 861998404026.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3231275421 + ... + 3231275612.

It is an arithmetic number, because the mean of its divisors is an integer number (67856785857).

Almost surely, 2^620404899168 is an apocalyptic number.

It is an amenable number.

620404899168 is an abundant number, since it is smaller than the sum of its proper divisors (1008157961400).

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

620404899168 is a wasteful number, since it uses less digits than its factorization.

620404899168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6462551046 (or 6462551038 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 57.

The spelling of 620404899168 in words is "six hundred twenty billion, four hundred four million, eight hundred ninety-nine thousand, one hundred sixty-eight".