6571237374656 has 28 divisors (see below), whose sum is σ = 13161666460968. Its totient is φ = 3254911967232.

The previous prime is 6571237374619. The next prime is 6571237374683. The reversal of 6571237374656 is 6564737321756.

It is a super-2 number, since 2×6571237374656² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479785601 + ... + 479799296.

Almost surely, 2^{6571237374656} is an apocalyptic number.

It is an amenable number.

6571237374656 is an abundant number, since it is smaller than the sum of its proper divisors (6590429086312).

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

6571237374656 is a wasteful number, since it uses less digits than its factorization.

6571237374656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959585016 (or 959585006 counting only the distinct ones).

The product of its digits is 133358400, while the sum is 62.

The spelling of 6571237374656 in words is "six trillion, five hundred seventy-one billion, two hundred thirty-seven million, three hundred seventy-four thousand, six hundred fifty-six".