168512572922 has 8 divisors (see below), whose sum is σ = 252854465556. Its totient is φ = 84227751072.

The previous prime is 168512572901. The next prime is 168512572957. The reversal of 168512572922 is 229275215861.

It can be written as a sum of positive squares in 2 ways, for example, as 167714001841 + 798571081 = 409529^2 + 28259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14260313 + ... + 14272124.

Almost surely, 2^168512572922 is an apocalyptic number.

168512572922 is a deficient number, since it is larger than the sum of its proper divisors (84341892634).

168512572922 is a wasteful number, since it uses less digits than its factorization.

168512572922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28535392.

The product of its digits is 1209600, while the sum is 50.

The spelling of 168512572922 in words is "one hundred sixty-eight billion, five hundred twelve million, five hundred seventy-two thousand, nine hundred twenty-two".