16616904 has 16 divisors (see below), whose sum is σ = 41542320. Its totient is φ = 5538960.

The previous prime is 16616903. The next prime is 16616921. The reversal of 16616904 is 40961661.

It is a super-2 number, since 2×16616904² = 552242997090432, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16616903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346162 + ... + 346209.

It is an arithmetic number, because the mean of its divisors is an integer number (2596395).

Almost surely, 2^16616904 is an apocalyptic number.

It is an amenable number.

16616904 is an abundant number, since it is smaller than the sum of its proper divisors (24925416).

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

16616904 is a wasteful number, since it uses less digits than its factorization.

16616904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692380 (or 692376 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 16616904 is about 4076.3836914599. The cubic root of 16616904 is about 255.1820000210.

The spelling of 16616904 in words is "sixteen million, six hundred sixteen thousand, nine hundred four".