13666012272 has 60 divisors (see below), whose sum is σ = 41722754424. Its totient is φ = 4141215360.

The previous prime is 13666012183. The next prime is 13666012291. The reversal of 13666012272 is 27221066631.

13666012272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4312183 + ... + 4315350.

Almost surely, 2^13666012272 is an apocalyptic number.

13666012272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13666012272 is an abundant number, since it is smaller than the sum of its proper divisors (28056742152).

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

13666012272 is a wasteful number, since it uses less digits than its factorization.

13666012272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8627558 (or 8627549 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 13666012272 in words is "thirteen billion, six hundred sixty-six million, twelve thousand, two hundred seventy-two".