16605642 has 32 divisors (see below), whose sum is σ = 34318080. Its totient is φ = 5353920.

The previous prime is 16605629. The next prime is 16605653. The reversal of 16605642 is 24650661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24792 + ... + 25452.

It is an arithmetic number, because the mean of its divisors is an integer number (1072440).

Almost surely, 2^16605642 is an apocalyptic number.

16605642 is an abundant number, since it is smaller than the sum of its proper divisors (17712438).

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

16605642 is a wasteful number, since it uses less digits than its factorization.

16605642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 16605642 is about 4075.0020858890. The cubic root of 16605642 is about 255.1243376716.

The spelling of 16605642 in words is "sixteen million, six hundred five thousand, six hundred forty-two".