13656143620 has 48 divisors (see below), whose sum is σ = 32800336128. Its totient is φ = 4678450560.

The previous prime is 13656143603. The next prime is 13656143623. The reversal of 13656143620 is 2634165631.

13656143620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13656143620.

It is not an unprimeable number, because it can be changed into a prime (13656143623) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 144990 + ... + 219850.

It is an arithmetic number, because the mean of its divisors is an integer number (683340336).

Almost surely, 2^13656143620 is an apocalyptic number.

13656143620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13656143620 is an abundant number, since it is smaller than the sum of its proper divisors (19144192508).

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

13656143620 is a wasteful number, since it uses less digits than its factorization.

13656143620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76180 (or 76178 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 13656143620 in words is "thirteen billion, six hundred fifty-six million, one hundred forty-three thousand, six hundred twenty".