16646064 has 20 divisors (see below), whose sum is σ = 43002456. Its totient is φ = 5548672.

The previous prime is 16646053. The next prime is 16646099. The reversal of 16646064 is 46064661.

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, 173349 + ... + 173444.

Almost surely, 2^16646064 is an apocalyptic number.

It is an amenable number.

16646064 is an abundant number, since it is smaller than the sum of its proper divisors (26356392).

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

16646064 is a wasteful number, since it uses less digits than its factorization.

16646064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346804 (or 346798 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 16646064 is about 4079.9588233216. The cubic root of 16646064 is about 255.3311806127.

The spelling of 16646064 in words is "sixteen million, six hundred forty-six thousand, sixty-four".