13660143756 has 180 divisors, whose sum is σ = 39608179128. Its totient is φ = 3651320064.

The previous prime is 13660143659. The next prime is 13660143767. The reversal of 13660143756 is 65734106631.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 81797185 + ... + 81797351.

Almost surely, 2^13660143756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13660143756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19804089564).

13660143756 is an abundant number, since it is smaller than the sum of its proper divisors (25948035372).

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

13660143756 is an equidigital number, since it uses as much as digits as its factorization.

13660143756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 13660143756 in words is "thirteen billion, six hundred sixty million, one hundred forty-three thousand, seven hundred fifty-six".