161179970 has 32 divisors (see below), whose sum is σ = 343008000. Its totient is φ = 53355456.

The previous prime is 161179969. The next prime is 161179981. The reversal of 161179970 is 79971161.

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 15 ways as a sum of consecutive naturals, for example, 37670 + ... + 41729.

It is an arithmetic number, because the mean of its divisors is an integer number (10719000).

Almost surely, 2^161179970 is an apocalyptic number.

161179970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161179970 is an abundant number, since it is smaller than the sum of its proper divisors (181828030).

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

161179970 is a wasteful number, since it uses less digits than its factorization.

161179970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79442.

The product of its (nonzero) digits is 23814, while the sum is 41.

The square root of 161179970 is about 12695.6673711940. The cubic root of 161179970 is about 544.2148107290.

The spelling of 161179970 in words is "one hundred sixty-one million, one hundred seventy-nine thousand, nine hundred seventy".