13664216252 has 12 divisors (see below), whose sum is σ = 23913557136. Its totient is φ = 6831771360.

The previous prime is 13664216249. The next prime is 13664216287. The reversal of 13664216252 is 25261246631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21977 + ... + 166767.

It is an arithmetic number, because the mean of its divisors is an integer number (1992796428).

Almost surely, 2^13664216252 is an apocalyptic number.

It is an amenable number.

13664216252 is a deficient number, since it is larger than the sum of its proper divisors (10249340884).

13664216252 is a wasteful number, since it uses less digits than its factorization.

13664216252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168388 (or 168386 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The spelling of 13664216252 in words is "thirteen billion, six hundred sixty-four million, two hundred sixteen thousand, two hundred fifty-two".