161516112 has 40 divisors (see below), whose sum is σ = 439212960. Its totient is φ = 51004800.

The previous prime is 161516101. The next prime is 161516123. The reversal of 161516112 is 211615161.

It is an interprime number because it is at equal distance from previous prime (161516101) and next prime (161516123).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 87639 + ... + 89462.

It is an arithmetic number, because the mean of its divisors is an integer number (10980324).

Almost surely, 2^161516112 is an apocalyptic number.

161516112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161516112 is an abundant number, since it is smaller than the sum of its proper divisors (277696848).

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

161516112 is a wasteful number, since it uses less digits than its factorization.

161516112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177131 (or 177125 counting only the distinct ones).

The product of its digits is 360, while the sum is 24.

The square root of 161516112 is about 12708.8989294903. The cubic root of 161516112 is about 544.5928693516.

The spelling of 161516112 in words is "one hundred sixty-one million, five hundred sixteen thousand, one hundred twelve".