161602956 has 36 divisors (see below), whose sum is σ = 412323912. Its totient is φ = 53362944.

The previous prime is 161602937. The next prime is 161602963. The reversal of 161602956 is 659206161.

161602956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×161602956² = 52231030775875872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 161602956.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17125 + ... + 24828.

It is an arithmetic number, because the mean of its divisors is an integer number (11453442).

Almost surely, 2^161602956 is an apocalyptic number.

It is an amenable number.

161602956 is an abundant number, since it is smaller than the sum of its proper divisors (250720956).

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

161602956 is a wasteful number, since it uses less digits than its factorization.

161602956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42070 (or 42065 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 161602956 is about 12712.3151313992. The cubic root of 161602956 is about 544.6904574469.

The spelling of 161602956 in words is "one hundred sixty-one million, six hundred two thousand, nine hundred fifty-six".