16659402 has 16 divisors (see below), whose sum is σ = 33495552. Its totient is φ = 5523680.

The previous prime is 16659397. The next prime is 16659413. The reversal of 16659402 is 20495661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6123 + ... + 8414.

It is an arithmetic number, because the mean of its divisors is an integer number (2093472).

Almost surely, 2^16659402 is an apocalyptic number.

16659402 is an abundant number, since it is smaller than the sum of its proper divisors (16836150).

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

16659402 is a wasteful number, since it uses less digits than its factorization.

16659402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14733.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 16659402 is about 4081.5930713387. The cubic root of 16659402 is about 255.3993588536.

The spelling of 16659402 in words is "sixteen million, six hundred fifty-nine thousand, four hundred two".