16656042 has 16 divisors (see below), whose sum is σ = 35874720. Its totient is φ = 5124912.

The previous prime is 16655993. The next prime is 16656043. The reversal of 16656042 is 24065661.

It is not an unprimeable number, because it can be changed into a prime (16656043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106692 + ... + 106847.

It is an arithmetic number, because the mean of its divisors is an integer number (2242170).

Almost surely, 2^16656042 is an apocalyptic number.

16656042 is an abundant number, since it is smaller than the sum of its proper divisors (19218678).

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

16656042 is a wasteful number, since it uses less digits than its factorization.

16656042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213557.

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

The square root of 16656042 is about 4081.1814465912. The cubic root of 16656042 is about 255.3821873781.

The spelling of 16656042 in words is "sixteen million, six hundred fifty-six thousand, forty-two".