168568477 has 12 divisors (see below), whose sum is σ = 213916896. Its totient is φ = 131351640.

The previous prime is 168568469. The next prime is 168568489. The reversal of 168568477 is 774865861.

It is not a de Polignac number, because 168568477 - 2³ = 168568469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168568427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155833 + ... + 156910.

It is an arithmetic number, because the mean of its divisors is an integer number (17826408).

Almost surely, 2^168568477 is an apocalyptic number.

It is an amenable number.

168568477 is a deficient number, since it is larger than the sum of its proper divisors (45348419).

168568477 is a wasteful number, since it uses less digits than its factorization.

168568477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312768 (or 312761 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 52.

The square root of 168568477 is about 12983.3923533104. The cubic root of 168568477 is about 552.4065095730.

The spelling of 168568477 in words is "one hundred sixty-eight million, five hundred sixty-eight thousand, four hundred seventy-seven".