512057220665 has 8 divisors (see below), whose sum is σ = 646809120960. Its totient is φ = 388085472432.

The previous prime is 512057220641. The next prime is 512057220671. The reversal of 512057220665 is 566022750215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 512057220665 - 2²⁴ = 512040443449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2695037909 + ... + 2695038098.

It is an arithmetic number, because the mean of its divisors is an integer number (80851140120).

Almost surely, 2^512057220665 is an apocalyptic number.

It is an amenable number.

512057220665 is a deficient number, since it is larger than the sum of its proper divisors (134751900295).

512057220665 is a wasteful number, since it uses less digits than its factorization.

512057220665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390076031.

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 512057220665 in words is "five hundred twelve billion, fifty-seven million, two hundred twenty thousand, six hundred sixty-five".