656070517066 has 32 divisors (see below), whose sum is σ = 1054570144320. Its totient is φ = 305218368000.

The previous prime is 656070517049. The next prime is 656070517079. The reversal of 656070517066 is 660715070656.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196485 + ... + 1162216.

It is an arithmetic number, because the mean of its divisors is an integer number (32955317010).

Almost surely, 2^656070517066 is an apocalyptic number.

656070517066 is a deficient number, since it is larger than the sum of its proper divisors (398499627254).

656070517066 is a wasteful number, since it uses less digits than its factorization.

656070517066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358950.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 656070517066 in words is "six hundred fifty-six billion, seventy million, five hundred seventeen thousand, sixty-six".