512561565164 has 24 divisors (see below), whose sum is σ = 983649816576. Its totient is φ = 231762722000.

The previous prime is 512561565133. The next prime is 512561565169. The reversal of 512561565164 is 461565165215.

It is a super-4 number, since 4×512561565164⁴ (a number of 48 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (512561565169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30486692 + ... + 30503499.

It is an arithmetic number, because the mean of its divisors is an integer number (40985409024).

Almost surely, 2^512561565164 is an apocalyptic number.

It is an amenable number.

512561565164 is a deficient number, since it is larger than the sum of its proper divisors (471088251412).

512561565164 is a wasteful number, since it uses less digits than its factorization.

512561565164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60990397 (or 60990395 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 47.

The spelling of 512561565164 in words is "five hundred twelve billion, five hundred sixty-one million, five hundred sixty-five thousand, one hundred sixty-four".