16616164 has 6 divisors (see below), whose sum is σ = 29078294. Its totient is φ = 8308080.

The previous prime is 16616161. The next prime is 16616167. The reversal of 16616164 is 46161661.

It is an interprime number because it is at equal distance from previous prime (16616161) and next prime (16616167).

It can be written as a sum of positive squares in only one way, i.e., 8820900 + 7795264 = 2970^2 + 2792^2 .

It is not an unprimeable number, because it can be changed into a prime (16616161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2077017 + ... + 2077024.

Almost surely, 2^16616164 is an apocalyptic number.

It is an amenable number.

16616164 is a deficient number, since it is larger than the sum of its proper divisors (12462130).

16616164 is a wasteful number, since it uses less digits than its factorization.

16616164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154045 (or 4154043 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 16616164 is about 4076.2929237237. The cubic root of 16616164 is about 255.1782119611.

The spelling of 16616164 in words is "sixteen million, six hundred sixteen thousand, one hundred sixty-four".