16158985924 has 9 divisors (see below), whose sum is σ = 28278670287. Its totient is φ = 8079365844.

The previous prime is 16158985849. The next prime is 16158985937. The reversal of 16158985924 is 42958985161.

The square root of 16158985924 is 127118.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×16158985924² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 222457 + ... + 286015.

Almost surely, 2^16158985924 is an apocalyptic number.

16158985924 is the 127118-th square number.

It is an amenable number.

16158985924 is a deficient number, since it is larger than the sum of its proper divisors (12119684363).

16158985924 is an frugal number, since it uses more digits than its factorization.

16158985924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127122 (or 63561 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 58.

The spelling of 16158985924 in words is "sixteen billion, one hundred fifty-eight million, nine hundred eighty-five thousand, nine hundred twenty-four".