161664162 has 32 divisors (see below), whose sum is σ = 353756160. Its totient is φ = 48845520.

The previous prime is 161664149. The next prime is 161664193. The reversal of 161664162 is 261466161.

It is a happy number.

It is a super-2 number, since 2×161664162² = 52270602550324488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20283 + ... + 27105.

It is an arithmetic number, because the mean of its divisors is an integer number (11054880).

Almost surely, 2^161664162 is an apocalyptic number.

161664162 is an abundant number, since it is smaller than the sum of its proper divisors (192091998).

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

161664162 is a wasteful number, since it uses less digits than its factorization.

161664162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7198.

The product of its digits is 10368, while the sum is 33.

The square root of 161664162 is about 12714.7222541430. The cubic root of 161664162 is about 544.7592146796.

The spelling of 161664162 in words is "one hundred sixty-one million, six hundred sixty-four thousand, one hundred sixty-two".