168509176675 has 12 divisors (see below), whose sum is σ = 238801576336. Its totient is φ = 115549149600.

The previous prime is 168509176639. The next prime is 168509176681. The reversal of 168509176675 is 576671905861.

It is not a de Polignac number, because 168509176675 - 2⁷ = 168509176547 is a prime.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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, 481454616 + ... + 481454965.

Almost surely, 2^168509176675 is an apocalyptic number.

168509176675 is a deficient number, since it is larger than the sum of its proper divisors (70292399661).

168509176675 is an equidigital number, since it uses as much as digits as its factorization.

168509176675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962909598 (or 962909593 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 61.

The spelling of 168509176675 in words is "one hundred sixty-eight billion, five hundred nine million, one hundred seventy-six thousand, six hundred seventy-five".