161875832392 has 16 divisors (see below), whose sum is σ = 303523542000. Its totient is φ = 80936221200.

The previous prime is 161875832381. The next prime is 161875832399. The reversal of 161875832392 is 293238578161.

It is a super-2 number, since 2×161875832392² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161875832399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254359 + ... + 623257.

It is an arithmetic number, because the mean of its divisors is an integer number (18970221375).

Almost surely, 2^161875832392 is an apocalyptic number.

It is an amenable number.

161875832392 is a deficient number, since it is larger than the sum of its proper divisors (141647709608).

161875832392 is a wasteful number, since it uses less digits than its factorization.

161875832392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423756 (or 423752 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 55.

The spelling of 161875832392 in words is "one hundred sixty-one billion, eight hundred seventy-five million, eight hundred thirty-two thousand, three hundred ninety-two".