16659996 has 48 divisors (see below), whose sum is σ = 40212480. Its totient is φ = 5365440.

The previous prime is 16659991. The next prime is 16659997. The reversal of 16659996 is 69995661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16659991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61341 + ... + 61611.

It is an arithmetic number, because the mean of its divisors is an integer number (837760).

Almost surely, 2^16659996 is an apocalyptic number.

It is an amenable number.

16659996 is an abundant number, since it is smaller than the sum of its proper divisors (23552484).

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

16659996 is a wasteful number, since it uses less digits than its factorization.

16659996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 432 counting only the distinct ones).

The product of its digits is 787320, while the sum is 51.

The square root of 16659996 is about 4081.6658363957. The cubic root of 16659996 is about 255.4023942850.

The spelling of 16659996 in words is "sixteen million, six hundred fifty-nine thousand, nine hundred ninety-six".