16158696972 has 48 divisors (see below), whose sum is σ = 41651904000. Its totient is φ = 4834589760.

The previous prime is 16158696947. The next prime is 16158697007. The reversal of 16158696972 is 27969685161.

It is a super-2 number, since 2×16158696972² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 764347 + ... + 785202.

It is an arithmetic number, because the mean of its divisors is an integer number (867748000).

Almost surely, 2^16158696972 is an apocalyptic number.

16158696972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16158696972 is an abundant number, since it is smaller than the sum of its proper divisors (25493207028).

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

16158696972 is a wasteful number, since it uses less digits than its factorization.

16158696972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549646 (or 1549644 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 60.

The spelling of 16158696972 in words is "sixteen billion, one hundred fifty-eight million, six hundred ninety-six thousand, nine hundred seventy-two".