16645652 has 48 divisors (see below), whose sum is σ = 33384960. Its totient is φ = 7214592.

The previous prime is 16645649. The next prime is 16645663. The reversal of 16645652 is 25654661.

It is a congruent number.

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, 45173 + ... + 45539.

It is an arithmetic number, because the mean of its divisors is an integer number (695520).

Almost surely, 2^16645652 is an apocalyptic number.

It is an amenable number.

16645652 is an abundant number, since it is smaller than the sum of its proper divisors (16739308).

16645652 is a wasteful number, since it uses less digits than its factorization.

16645652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 438 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 16645652 is about 4079.9083323036. The cubic root of 16645652 is about 255.3290740624.

Subtracting 16645652 from its reverse (25654661), we obtain a palindrome (9009009).

The spelling of 16645652 in words is "sixteen million, six hundred forty-five thousand, six hundred fifty-two".