13664166 has 16 divisors (see below), whose sum is σ = 27411264. Its totient is φ = 4540904.

The previous prime is 13664159. The next prime is 13664219. The reversal of 13664166 is 66146631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200 + ... + 5363.

It is an arithmetic number, because the mean of its divisors is an integer number (1713204).

Almost surely, 2^13664166 is an apocalyptic number.

13664166 is an abundant number, since it is smaller than the sum of its proper divisors (13747098).

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

13664166 is a wasteful number, since it uses less digits than its factorization.

13664166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6915.

The product of its digits is 15552, while the sum is 33.

The square root of 13664166 is about 3696.5072703838. The cubic root of 13664166 is about 239.0714468094.

The spelling of 13664166 in words is "thirteen million, six hundred sixty-four thousand, one hundred sixty-six".