161023944 has 16 divisors (see below), whose sum is σ = 402559920. Its totient is φ = 53674640.

The previous prime is 161023903. The next prime is 161023969. The reversal of 161023944 is 449320161.

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, 3354642 + ... + 3354689.

It is an arithmetic number, because the mean of its divisors is an integer number (25159995).

Almost surely, 2^161023944 is an apocalyptic number.

It is an amenable number.

161023944 is an abundant number, since it is smaller than the sum of its proper divisors (241535976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161023944 is a wasteful number, since it uses less digits than its factorization.

161023944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6709340 (or 6709336 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 161023944 is about 12689.5210311501. The cubic root of 161023944 is about 544.0391497920.

The spelling of 161023944 in words is "one hundred sixty-one million, twenty-three thousand, nine hundred forty-four".