16201656 has 24 divisors (see below), whose sum is σ = 43879680. Its totient is φ = 5400528.

The previous prime is 16201621. The next prime is 16201657. The reversal of 16201656 is 65610261.

It is a happy number.

16201656 is a `hidden beast` number, since 1 + 6 + 2 + 0 + 1 + 656 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16201657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112440 + ... + 112583.

It is an arithmetic number, because the mean of its divisors is an integer number (1828320).

Almost surely, 2^16201656 is an apocalyptic number.

It is an amenable number.

16201656 is an abundant number, since it is smaller than the sum of its proper divisors (27678024).

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

16201656 is a wasteful number, since it uses less digits than its factorization.

16201656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225035 (or 225028 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 16201656 is about 4025.1280724966. The cubic root of 16201656 is about 253.0384210529.

The spelling of 16201656 in words is "sixteen million, two hundred one thousand, six hundred fifty-six".