646550096604 has 24 divisors (see below), whose sum is σ = 1509505930128. Its totient is φ = 215389693440.

The previous prime is 646550096579. The next prime is 646550096611. The reversal of 646550096604 is 406690055646.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15854467 + ... + 15895194.

It is an arithmetic number, because the mean of its divisors is an integer number (62896080422).

Almost surely, 2^646550096604 is an apocalyptic number.

It is an amenable number.

646550096604 is an abundant number, since it is smaller than the sum of its proper divisors (862955833524).

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

646550096604 is a wasteful number, since it uses less digits than its factorization.

646550096604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31751365 (or 31751363 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 51.

The spelling of 646550096604 in words is "six hundred forty-six billion, five hundred fifty million, ninety-six thousand, six hundred four".