168956904 has 32 divisors (see below), whose sum is σ = 423360000. Its totient is φ = 56189952.

The previous prime is 168956903. The next prime is 168956917. The reversal of 168956904 is 409659861.

It is not an unprimeable number, because it can be changed into a prime (168956903) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2937 + ... + 18615.

It is an arithmetic number, because the mean of its divisors is an integer number (13230000).

Almost surely, 2^168956904 is an apocalyptic number.

It is an amenable number.

168956904 is an abundant number, since it is smaller than the sum of its proper divisors (254403096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168956904 is a wasteful number, since it uses less digits than its factorization.

168956904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16137 (or 16133 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 168956904 is about 12998.3423558545. The cubic root of 168956904 is about 552.8304816962.

The spelling of 168956904 in words is "one hundred sixty-eight million, nine hundred fifty-six thousand, nine hundred four".