13656067776 has 112 divisors (see below), whose sum is σ = 43234559200. Its totient is φ = 4201860096.

The previous prime is 13656067721. The next prime is 13656067813. The reversal of 13656067776 is 67776065631.

It is a happy number.

13656067776 is a `hidden beast` number, since 1 + 3 + 6 + 560 + 6 + 7 + 7 + 76 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 281491 + ... + 326418.

It is an arithmetic number, because the mean of its divisors is an integer number (386022850).

Almost surely, 2^13656067776 is an apocalyptic number.

13656067776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13656067776 is an abundant number, since it is smaller than the sum of its proper divisors (29578491424).

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

13656067776 is a wasteful number, since it uses less digits than its factorization.

13656067776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607943 (or 607927 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 54.

The spelling of 13656067776 in words is "thirteen billion, six hundred fifty-six million, sixty-seven thousand, seven hundred seventy-six".