168776864 has 24 divisors (see below), whose sum is σ = 336490560. Its totient is φ = 83318976.

The previous prime is 168776851. The next prime is 168776873. The reversal of 168776864 is 468677861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30854 + ... + 35909.

It is an arithmetic number, because the mean of its divisors is an integer number (14020440).

Almost surely, 2^168776864 is an apocalyptic number.

It is an amenable number.

168776864 is a deficient number, since it is larger than the sum of its proper divisors (167713696).

168776864 is an equidigital number, since it uses as much as digits as its factorization.

168776864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66852 (or 66844 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 168776864 is about 12991.4150114605. The cubic root of 168776864 is about 552.6340470393.

The spelling of 168776864 in words is "one hundred sixty-eight million, seven hundred seventy-six thousand, eight hundred sixty-four".