161929575325 has 24 divisors (see below), whose sum is σ = 229563918080. Its totient is φ = 110995531200.

The previous prime is 161929575289. The next prime is 161929575331. The reversal of 161929575325 is 523575929161.

It is not a de Polignac number, because 161929575325 - 2¹¹ = 161929573277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294211 + ... + 640639.

Almost surely, 2^161929575325 is an apocalyptic number.

It is an amenable number.

161929575325 is a deficient number, since it is larger than the sum of its proper divisors (67634342755).

161929575325 is a wasteful number, since it uses less digits than its factorization.

161929575325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349117 (or 349112 counting only the distinct ones).

The product of its digits is 5103000, while the sum is 55.

The spelling of 161929575325 in words is "one hundred sixty-one billion, nine hundred twenty-nine million, five hundred seventy-five thousand, three hundred twenty-five".