16665064 has 32 divisors (see below), whose sum is σ = 35118720. Its totient is φ = 7356096.

The previous prime is 16665043. The next prime is 16665137. The reversal of 16665064 is 46056661.

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, 1092 + ... + 5875.

It is an arithmetic number, because the mean of its divisors is an integer number (1097460).

Almost surely, 2^16665064 is an apocalyptic number.

It is an amenable number.

16665064 is an abundant number, since it is smaller than the sum of its proper divisors (18453656).

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

16665064 is a wasteful number, since it uses less digits than its factorization.

16665064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009 (or 7005 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 16665064 is about 4082.2866141416. The cubic root of 16665064 is about 255.4282896115.

The spelling of 16665064 in words is "sixteen million, six hundred sixty-five thousand, sixty-four".