13661635224 has 32 divisors (see below), whose sum is σ = 34621956720. Its totient is φ = 4491495936.

The previous prime is 13661635157. The next prime is 13661635231. The reversal of 13661635224 is 42253616631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3897117 + ... + 3900620.

Almost surely, 2^13661635224 is an apocalyptic number.

It is an amenable number.

13661635224 is an abundant number, since it is smaller than the sum of its proper divisors (20960321496).

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

13661635224 is a wasteful number, since it uses less digits than its factorization.

13661635224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7797819 (or 7797815 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The spelling of 13661635224 in words is "thirteen billion, six hundred sixty-one million, six hundred thirty-five thousand, two hundred twenty-four".