161616192 has 28 divisors (see below), whose sum is σ = 427610016. Its totient is φ = 53872000.

The previous prime is 161616181. The next prime is 161616199. The reversal of 161616192 is 291616161.

It is a super-2 number, since 2×161616192² = 52239587033161728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161616199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420684 + ... + 421067.

Almost surely, 2^161616192 is an apocalyptic number.

161616192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161616192 is an abundant number, since it is smaller than the sum of its proper divisors (265993824).

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

161616192 is an equidigital number, since it uses as much as digits as its factorization.

161616192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841766 (or 841756 counting only the distinct ones).

The product of its digits is 3888, while the sum is 33.

The square root of 161616192 is about 12712.8357182810. The cubic root of 161616192 is about 544.7053278970.

The spelling of 161616192 in words is "one hundred sixty-one million, six hundred sixteen thousand, one hundred ninety-two".