66256627708315 has 32 divisors (see below), whose sum is σ = 86835939664320. Its totient is φ = 48131096832000.

The previous prime is 66256627708307. The next prime is 66256627708333. The reversal of 66256627708315 is 51380772665266.

It is not a de Polignac number, because 66256627708315 - 2³ = 66256627708307 is a prime.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 685831015 + ... + 685927615.

It is an arithmetic number, because the mean of its divisors is an integer number (2713623114510).

Almost surely, 2^{66256627708315} is an apocalyptic number.

66256627708315 is a deficient number, since it is larger than the sum of its proper divisors (20579311956005).

66256627708315 is a wasteful number, since it uses less digits than its factorization.

66256627708315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110863.

The product of its (nonzero) digits is 152409600, while the sum is 64.

The spelling of 66256627708315 in words is "sixty-six trillion, two hundred fifty-six billion, six hundred twenty-seven million, seven hundred eight thousand, three hundred fifteen".