13706368656 has 80 divisors (see below), whose sum is σ = 38892272640. Its totient is φ = 4140132480.

The previous prime is 13706368651. The next prime is 13706368661. The reversal of 13706368656 is 65686360731.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13706368651) and next prime (13706368661).

It is a junction number, because it is equal to n+sod(n) for n = 13706368599 and 13706368608.

It is not an unprimeable number, because it can be changed into a prime (13706368651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305740 + ... + 347691.

It is an arithmetic number, because the mean of its divisors is an integer number (486153408).

Almost surely, 2^13706368656 is an apocalyptic number.

13706368656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13706368656 is an abundant number, since it is smaller than the sum of its proper divisors (25185903984).

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

13706368656 is a wasteful number, since it uses less digits than its factorization.

13706368656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653484 (or 653478 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 51.

The spelling of 13706368656 in words is "thirteen billion, seven hundred six million, three hundred sixty-eight thousand, six hundred fifty-six".