161039832472 has 16 divisors (see below), whose sum is σ = 309314313000. Its totient is φ = 78556015680.

The previous prime is 161039832467. The next prime is 161039832497. The reversal of 161039832472 is 274238930161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245487222 + ... + 245487877.

Almost surely, 2^161039832472 is an apocalyptic number.

It is an amenable number.

161039832472 is a deficient number, since it is larger than the sum of its proper divisors (148274480528).

161039832472 is a wasteful number, since it uses less digits than its factorization.

161039832472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490975146 (or 490975142 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 161039832472 in words is "one hundred sixty-one billion, thirty-nine million, eight hundred thirty-two thousand, four hundred seventy-two".