16968564 has 36 divisors (see below), whose sum is σ = 43214080. Its totient is φ = 5613840.

The previous prime is 16968559. The next prime is 16968583. The reversal of 16968564 is 46586961.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3309 + ... + 6699.

Almost surely, 2^16968564 is an apocalyptic number.

It is an amenable number.

16968564 is an abundant number, since it is smaller than the sum of its proper divisors (26245516).

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

16968564 is a wasteful number, since it uses less digits than its factorization.

16968564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540 (or 3535 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 16968564 is about 4119.2916866860. The cubic root of 16968564 is about 256.9695694917.

The spelling of 16968564 in words is "sixteen million, nine hundred sixty-eight thousand, five hundred sixty-four".