168113922577 has 8 divisors (see below), whose sum is σ = 173917817640. Its totient is φ = 162310485120.

The previous prime is 168113922533. The next prime is 168113922589. The reversal of 168113922577 is 775229311861.

It can be written as a sum of positive squares in 4 ways, for example, as 90851605056 + 77262317521 = 301416^2 + 277961^2 .

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

It is not a de Polignac number, because 168113922577 - 2¹⁵ = 168113889809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168113922527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741733 + ... + 941485.

It is an arithmetic number, because the mean of its divisors is an integer number (21739727205).

Almost surely, 2^168113922577 is an apocalyptic number.

It is an amenable number.

168113922577 is a deficient number, since it is larger than the sum of its proper divisors (5803895063).

168113922577 is a wasteful number, since it uses less digits than its factorization.

168113922577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228803.

The product of its digits is 1270080, while the sum is 52.

The spelling of 168113922577 in words is "one hundred sixty-eight billion, one hundred thirteen million, nine hundred twenty-two thousand, five hundred seventy-seven".