16612664 has 16 divisors (see below), whose sum is σ = 31452720. Its totient is φ = 8225280.

The previous prime is 16612649. The next prime is 16612681. The reversal of 16612664 is 46621661.

It is a self number, because there is not a number n which added to its sum of digits gives 16612664.

It is a congruent number.

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, 9257 + ... + 10904.

It is an arithmetic number, because the mean of its divisors is an integer number (1965795).

Almost surely, 2^16612664 is an apocalyptic number.

It is an amenable number.

16612664 is a deficient number, since it is larger than the sum of its proper divisors (14840056).

16612664 is a wasteful number, since it uses less digits than its factorization.

16612664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20270 (or 20266 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 16612664 is about 4075.8635894740. The cubic root of 16612664 is about 255.1602939375.

The spelling of 16612664 in words is "sixteen million, six hundred twelve thousand, six hundred sixty-four".