11670172856 has 16 divisors (see below), whose sum is σ = 23033236200. Its totient is φ = 5527976544.

The previous prime is 11670172819. The next prime is 11670172861. The reversal of 11670172856 is 65827107611.

It is a congruent number.

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, 38388575 + ... + 38388878.

Almost surely, 2^11670172856 is an apocalyptic number.

It is an amenable number.

11670172856 is a deficient number, since it is larger than the sum of its proper divisors (11363063344).

11670172856 is a wasteful number, since it uses less digits than its factorization.

11670172856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76777478 (or 76777474 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 11670172856 in words is "eleven billion, six hundred seventy million, one hundred seventy-two thousand, eight hundred fifty-six".