168979627225 has 12 divisors (see below), whose sum is σ = 209637564480. Its totient is φ = 135117362000.

The previous prime is 168979627211. The next prime is 168979627249. The reversal of 168979627225 is 522726979861.

It is not a de Polignac number, because 168979627225 - 2⁹ = 168979626713 is a prime.

It is a super-2 number, since 2×168979627225² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1606501 + ... + 1708450.

It is an arithmetic number, because the mean of its divisors is an integer number (17469797040).

Almost surely, 2^168979627225 is an apocalyptic number.

It is an amenable number.

168979627225 is a deficient number, since it is larger than the sum of its proper divisors (40657937255).

168979627225 is a wasteful number, since it uses less digits than its factorization.

168979627225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3317000 (or 3316995 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 64.

The spelling of 168979627225 in words is "one hundred sixty-eight billion, nine hundred seventy-nine million, six hundred twenty-seven thousand, two hundred twenty-five".