16656252 has 12 divisors (see below), whose sum is σ = 38864616. Its totient is φ = 5552080.

The previous prime is 16656239. The next prime is 16656307. The reversal of 16656252 is 25265661.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693999 + ... + 694022.

It is an arithmetic number, because the mean of its divisors is an integer number (3238718).

Almost surely, 2^16656252 is an apocalyptic number.

16656252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16656252 is an abundant number, since it is smaller than the sum of its proper divisors (22208364).

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

16656252 is a wasteful number, since it uses less digits than its factorization.

16656252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388028 (or 1388026 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 16656252 is about 4081.2071743542. The cubic root of 16656252 is about 255.3832606629.

The spelling of 16656252 in words is "sixteen million, six hundred fifty-six thousand, two hundred fifty-two".