646510513113056 has 96 divisors (see below), whose sum is σ = 1284438558312000. Its totient is φ = 320315477594112.

The previous prime is 646510513113053. The next prime is 646510513113103. The reversal of 646510513113056 is 650311315015646.

It is a self number, because there is not a number n which added to its sum of digits gives 646510513113056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646510513113053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12838008005 + ... + 12838058363.

It is an arithmetic number, because the mean of its divisors is an integer number (13379568315750).

Almost surely, 2^{646510513113056} is an apocalyptic number.

It is an amenable number.

646510513113056 is a deficient number, since it is larger than the sum of its proper divisors (637928045198944).

646510513113056 is a wasteful number, since it uses less digits than its factorization.

646510513113056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57484 (or 57476 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 646510513113056 in words is "six hundred forty-six trillion, five hundred ten billion, five hundred thirteen million, one hundred thirteen thousand, fifty-six".