16166631612 has 24 divisors (see below), whose sum is σ = 39707516800. Its totient is φ = 5105252016.

The previous prime is 16166631601. The next prime is 16166631617. The reversal of 16166631612 is 21613666161.

It is a super-2 number, since 2×16166631612² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16166631617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35452912 + ... + 35453367.

Almost surely, 2^16166631612 is an apocalyptic number.

16166631612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16166631612 is an abundant number, since it is smaller than the sum of its proper divisors (23540885188).

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

16166631612 is a wasteful number, since it uses less digits than its factorization.

16166631612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70906305 (or 70906303 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The spelling of 16166631612 in words is "sixteen billion, one hundred sixty-six million, six hundred thirty-one thousand, six hundred twelve".