165796745679 has 6 divisors (see below), whose sum is σ = 239484188216. Its totient is φ = 110531163780.

The previous prime is 165796745623. The next prime is 165796745707. The reversal of 165796745679 is 976547697561.

165796745679 is a `hidden beast` number, since 1 + 6 + 57 + 9 + 6 + 7 + 4 + 567 + 9 = 666.

It is not a de Polignac number, because 165796745679 - 2⁸ = 165796745423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165796745879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9210930307 + ... + 9210930324.

Almost surely, 2^165796745679 is an apocalyptic number.

165796745679 is a deficient number, since it is larger than the sum of its proper divisors (73687442537).

165796745679 is a wasteful number, since it uses less digits than its factorization.

165796745679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18421860637 (or 18421860634 counting only the distinct ones).

The product of its digits is 600112800, while the sum is 72.

The spelling of 165796745679 in words is "one hundred sixty-five billion, seven hundred ninety-six million, seven hundred forty-five thousand, six hundred seventy-nine".