16213656 has 16 divisors (see below), whose sum is σ = 40534200. Its totient is φ = 5404544.

The previous prime is 16213649. The next prime is 16213657. The reversal of 16213656 is 65631261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16213657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337761 + ... + 337808.

Almost surely, 2^16213656 is an apocalyptic number.

It is an amenable number.

16213656 is an abundant number, since it is smaller than the sum of its proper divisors (24320544).

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

16213656 is a wasteful number, since it uses less digits than its factorization.

16213656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675578 (or 675574 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 16213656 is about 4026.6184323822. The cubic root of 16213656 is about 253.1008778720.

The spelling of 16213656 in words is "sixteen million, two hundred thirteen thousand, six hundred fifty-six".