161088158 has 64 divisors (see below), whose sum is σ = 327794688. Its totient is φ = 57438720.

The previous prime is 161088149. The next prime is 161088163. The reversal of 161088158 is 851880161.

Together with 166706530 it forms an amicable pair .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96035 + ... + 97697.

It is an arithmetic number, because the mean of its divisors is an integer number (5121792).

Almost surely, 2^161088158 is an apocalyptic number.

161088158 is an abundant number, since it is smaller than the sum of its proper divisors (166706530).

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

161088158 is a wasteful number, since it uses less digits than its factorization.

161088158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737.

The product of its (nonzero) digits is 15360, while the sum is 38.

The square root of 161088158 is about 12692.0509768910. The cubic root of 161088158 is about 544.1114584733. Note that the first 3 decimals are identical.

The spelling of 161088158 in words is "one hundred sixty-one million, eighty-eight thousand, one hundred fifty-eight".