12162005157177 has 12 divisors (see below), whose sum is σ = 18217983034160. Its totient is φ = 8108003437956.

The previous prime is 12162005157163. The next prime is 12162005157179. The reversal of 12162005157177 is 77175150026121.

12162005157177 is a `hidden beast` number, since 1 + 2 + 1 + 6 + 2 + 0 + 0 + 5 + 1 + 571 + 77 = 666.

It is not a de Polignac number, because 12162005157177 - 2¹⁴ = 12162005140793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12162005157179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25024701727 + ... + 25024702212.

Almost surely, 2^{12162005157177} is an apocalyptic number.

It is an amenable number.

12162005157177 is a deficient number, since it is larger than the sum of its proper divisors (6055977876983).

12162005157177 is an frugal number, since it uses more digits than its factorization.

12162005157177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50049403954 (or 50049403942 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 45.

The spelling of 12162005157177 in words is "twelve trillion, one hundred sixty-two billion, five million, one hundred fifty-seven thousand, one hundred seventy-seven".