16156612612 has 72 divisors (see below), whose sum is σ = 33998834688. Its totient is φ = 6698477520.

The previous prime is 16156612607. The next prime is 16156612657. The reversal of 16156612612 is 21621665161.

It is a super-2 number, since 2×16156612612² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5837653 + ... + 5840419.

Almost surely, 2^16156612612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16156612612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16999417344).

16156612612 is an abundant number, since it is smaller than the sum of its proper divisors (17842222076).

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

16156612612 is an equidigital number, since it uses as much as digits as its factorization.

16156612612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878 (or 2807 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The spelling of 16156612612 in words is "sixteen billion, one hundred fifty-six million, six hundred twelve thousand, six hundred twelve".