168977696 has 12 divisors (see below), whose sum is σ = 332674902. Its totient is φ = 84488832.

The previous prime is 168977689. The next prime is 168977701. The reversal of 168977696 is 696779861.

It can be written as a sum of positive squares in only one way, i.e., 153264400 + 15713296 = 12380^2 + 3964^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2640245 + ... + 2640308.

Almost surely, 2^168977696 is an apocalyptic number.

168977696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

168977696 is a deficient number, since it is larger than the sum of its proper divisors (163697206).

168977696 is an equidigital number, since it uses as much as digits as its factorization.

168977696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5280563 (or 5280555 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 59.

The square root of 168977696 is about 12999.1421255404. The cubic root of 168977696 is about 552.8531580506.

The spelling of 168977696 in words is "one hundred sixty-eight million, nine hundred seventy-seven thousand, six hundred ninety-six".