161477634932 has 24 divisors (see below), whose sum is σ = 292683857760. Its totient is φ = 77860412000.

The previous prime is 161477634907. The next prime is 161477634973. The reversal of 161477634932 is 239436774161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745694 + ... + 937557.

It is an arithmetic number, because the mean of its divisors is an integer number (12195160740).

Almost surely, 2^161477634932 is an apocalyptic number.

It is an amenable number.

161477634932 is a deficient number, since it is larger than the sum of its proper divisors (131206222828).

161477634932 is a wasteful number, since it uses less digits than its factorization.

161477634932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684111 (or 1684109 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 53.

The spelling of 161477634932 in words is "one hundred sixty-one billion, four hundred seventy-seven million, six hundred thirty-four thousand, nine hundred thirty-two".