13660402075 has 12 divisors (see below), whose sum is σ = 17675373168. Its totient is φ = 10453176800.

The previous prime is 13660402057. The next prime is 13660402097. The reversal of 13660402075 is 57020406631.

It is a happy number.

It is not a de Polignac number, because 13660402075 - 2⁵ = 13660402043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13660402075.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11878036 + ... + 11879185.

It is an arithmetic number, because the mean of its divisors is an integer number (1472947764).

Almost surely, 2^13660402075 is an apocalyptic number.

13660402075 is a deficient number, since it is larger than the sum of its proper divisors (4014971093).

13660402075 is a wasteful number, since it uses less digits than its factorization.

13660402075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23757254 (or 23757249 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 13660402075 in words is "thirteen billion, six hundred sixty million, four hundred two thousand, seventy-five".