16123856112 has 300 divisors, whose sum is σ = 58465096536. Its totient is φ = 4252227840.

The previous prime is 16123856107. The next prime is 16123856113. The reversal of 16123856112 is 21165832161.

16123856112 is a `hidden beast` number, since 1 + 6 + 1 + 2 + 38 + 5 + 611 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16123856113) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 815787 + ... + 835317.

Almost surely, 2^16123856112 is an apocalyptic number.

16123856112 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 16123856112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29232548268).

16123856112 is an abundant number, since it is smaller than the sum of its proper divisors (42341240424).

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

16123856112 is a wasteful number, since it uses less digits than its factorization.

16123856112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19578 (or 19556 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The spelling of 16123856112 in words is "sixteen billion, one hundred twenty-three million, eight hundred fifty-six thousand, one hundred twelve".