16158912 has 112 divisors (see below), whose sum is σ = 53352192. Its totient is φ = 4193280.

The previous prime is 16158907. The next prime is 16158937. The reversal of 16158912 is 21985161.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×16158912² = 522220874047488, 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, 14238 + ... + 15330.

Almost surely, 2^16158912 is an apocalyptic number.

16158912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16158912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26676096).

16158912 is an abundant number, since it is smaller than the sum of its proper divisors (37193280).

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

16158912 is a wasteful number, since it uses less digits than its factorization.

16158912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126 (or 1116 counting only the distinct ones).

The product of its digits is 4320, while the sum is 33.

The square root of 16158912 is about 4019.8149211127. The cubic root of 16158912 is about 252.8156989663.

The spelling of 16158912 in words is "sixteen million, one hundred fifty-eight thousand, nine hundred twelve".