646311032504 has 32 divisors (see below), whose sum is σ = 1280015869440. Its totient is φ = 305458322400.

The previous prime is 646311032503. The next prime is 646311032531. The reversal of 646311032504 is 405230113646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646311032501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30292742 + ... + 30314069.

It is an arithmetic number, because the mean of its divisors is an integer number (40000495920).

Almost surely, 2^646311032504 is an apocalyptic number.

It is an amenable number.

646311032504 is a deficient number, since it is larger than the sum of its proper divisors (633704836936).

646311032504 is a wasteful number, since it uses less digits than its factorization.

646311032504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60606891 (or 60606887 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 646311032504 in words is "six hundred forty-six billion, three hundred eleven million, thirty-two thousand, five hundred four".