646056170364 has 24 divisors (see below), whose sum is σ = 1644506615808. Its totient is φ = 195774597040.

The previous prime is 646056170341. The next prime is 646056170369. The reversal of 646056170364 is 463071650646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646056170369) 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, 2447182332 + ... + 2447182595.

It is an arithmetic number, because the mean of its divisors is an integer number (68521108992).

Almost surely, 2^646056170364 is an apocalyptic number.

It is an amenable number.

646056170364 is an abundant number, since it is smaller than the sum of its proper divisors (998450445444).

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

646056170364 is a wasteful number, since it uses less digits than its factorization.

646056170364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4894364945 (or 4894364943 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 646056170364 in words is "six hundred forty-six billion, fifty-six million, one hundred seventy thousand, three hundred sixty-four".