161614577112 has 32 divisors (see below), whose sum is σ = 421603246080. Its totient is φ = 51529285280.

The previous prime is 161614577107. The next prime is 161614577123. The reversal of 161614577112 is 211775416161.

It is a super-2 number, since 2×161614577112² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146389464 + ... + 146390567.

It is an arithmetic number, because the mean of its divisors is an integer number (13175101440).

Almost surely, 2^161614577112 is an apocalyptic number.

161614577112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161614577112 is an abundant number, since it is smaller than the sum of its proper divisors (259988668968).

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

161614577112 is a wasteful number, since it uses less digits than its factorization.

161614577112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292780063 (or 292780059 counting only the distinct ones).

The product of its digits is 70560, while the sum is 42.

The spelling of 161614577112 in words is "one hundred sixty-one billion, six hundred fourteen million, five hundred seventy-seven thousand, one hundred twelve".