161342164 has 24 divisors (see below), whose sum is σ = 292682880. Its totient is φ = 77770176.

The previous prime is 161342143. The next prime is 161342173. The reversal of 161342164 is 461243161.

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, 6192 + ... + 19000.

It is an arithmetic number, because the mean of its divisors is an integer number (12195120).

Almost surely, 2^161342164 is an apocalyptic number.

It is an amenable number.

161342164 is a deficient number, since it is larger than the sum of its proper divisors (131340716).

161342164 is a wasteful number, since it uses less digits than its factorization.

161342164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12927 (or 12925 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 161342164 is about 12702.0535347636. The cubic root of 161342164 is about 544.3972957397.

The spelling of 161342164 in words is "one hundred sixty-one million, three hundred forty-two thousand, one hundred sixty-four".