161162916 has 12 divisors (see below), whose sum is σ = 376046832. Its totient is φ = 53720968.

The previous prime is 161162899. The next prime is 161162927. The reversal of 161162916 is 619261161.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6715110 + ... + 6715133.

It is an arithmetic number, because the mean of its divisors is an integer number (31337236).

Almost surely, 2^161162916 is an apocalyptic number.

It is an amenable number.

161162916 is an abundant number, since it is smaller than the sum of its proper divisors (214883916).

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

161162916 is a wasteful number, since it uses less digits than its factorization.

161162916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13430250 (or 13430248 counting only the distinct ones).

The product of its digits is 3888, while the sum is 33.

The square root of 161162916 is about 12694.9957069705. The cubic root of 161162916 is about 544.1956161050.

The spelling of 161162916 in words is "one hundred sixty-one million, one hundred sixty-two thousand, nine hundred sixteen".