168694475 has 6 divisors (see below), whose sum is σ = 209181180. Its totient is φ = 134955560.

The previous prime is 168694469. The next prime is 168694499. The reversal of 168694475 is 574496861.

It is not a de Polignac number, because 168694475 - 2⁶ = 168694411 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3373865 + ... + 3373914.

It is an arithmetic number, because the mean of its divisors is an integer number (34863530).

Almost surely, 2^168694475 is an apocalyptic number.

168694475 is a deficient number, since it is larger than the sum of its proper divisors (40486705).

168694475 is an equidigital number, since it uses as much as digits as its factorization.

168694475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6747789 (or 6747784 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The square root of 168694475 is about 12988.2437226901. The cubic root of 168694475 is about 552.5441090069.

The spelling of 168694475 in words is "one hundred sixty-eight million, six hundred ninety-four thousand, four hundred seventy-five".