161667088 has 20 divisors (see below), whose sum is σ = 341705808. Its totient is φ = 73484960.

The previous prime is 161667073. The next prime is 161667109. The reversal of 161667088 is 880766161.

It is a super-2 number, since 2×161667088² = 52272494684799488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459106 + ... + 459457.

Almost surely, 2^161667088 is an apocalyptic number.

It is an amenable number.

161667088 is an abundant number, since it is smaller than the sum of its proper divisors (180038720).

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

161667088 is a wasteful number, since it uses less digits than its factorization.

161667088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918582 (or 918576 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 161667088 is about 12714.8373170875. The cubic root of 161667088 is about 544.7625012374.

The spelling of 161667088 in words is "one hundred sixty-one million, six hundred sixty-seven thousand, eighty-eight".