168890916 has 12 divisors (see below), whose sum is σ = 394078832. Its totient is φ = 56296968.

The previous prime is 168890899. The next prime is 168890921. The reversal of 168890916 is 619098861.

168890916 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7037110 + ... + 7037133.

Almost surely, 2^168890916 is an apocalyptic number.

It is an amenable number.

168890916 is an abundant number, since it is smaller than the sum of its proper divisors (225187916).

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

168890916 is a wasteful number, since it uses less digits than its factorization.

168890916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14074250 (or 14074248 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 48.

The square root of 168890916 is about 12995.8037842990. The cubic root of 168890916 is about 552.7585009578.

The spelling of 168890916 in words is "one hundred sixty-eight million, eight hundred ninety thousand, nine hundred sixteen".