165096872577 has 144 divisors (see below), whose sum is σ = 319776457728. Its totient is φ = 79834947840.

The previous prime is 165096872561. The next prime is 165096872581. The reversal of 165096872577 is 775278690561.

165096872577 is a `hidden beast` number, since 1 + 6 + 50 + 9 + 6 + 8 + 7 + 2 + 577 = 666.

It is not a de Polignac number, because 165096872577 - 2⁴ = 165096872561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (165096872537) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 9156423 + ... + 9174435.

Almost surely, 2^165096872577 is an apocalyptic number.

It is an amenable number.

165096872577 is a deficient number, since it is larger than the sum of its proper divisors (154679585151).

165096872577 is a wasteful number, since it uses less digits than its factorization.

165096872577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18108 (or 18086 counting only the distinct ones).

The product of its (nonzero) digits is 44452800, while the sum is 63.

The spelling of 165096872577 in words is "one hundred sixty-five billion, ninety-six million, eight hundred seventy-two thousand, five hundred seventy-seven".