7172160655257 has 24 divisors (see below), whose sum is σ = 11170870727744. Its totient is φ = 4408029090144.

The previous prime is 7172160655237. The next prime is 7172160655259. The reversal of 7172160655257 is 7525560612717.

7172160655257 is a `hidden beast` number, since 7 + 1 + 7 + 2 + 1 + 606 + 5 + 5 + 25 + 7 = 666.

It is not a de Polignac number, because 7172160655257 - 2⁸ = 7172160655001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7172160655259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38853613 + ... + 39037770.

Almost surely, 2^{7172160655257} is an apocalyptic number.

It is an amenable number.

7172160655257 is a deficient number, since it is larger than the sum of its proper divisors (3998710072487).

7172160655257 is a wasteful number, since it uses less digits than its factorization.

7172160655257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77892189 (or 77892186 counting only the distinct ones).

The product of its (nonzero) digits is 6174000, while the sum is 54.

The spelling of 7172160655257 in words is "seven trillion, one hundred seventy-two billion, one hundred sixty million, six hundred fifty-five thousand, two hundred fifty-seven".