11811318659 has 8 divisors (see below), whose sum is σ = 13500039168. Its totient is φ = 10122945480.

The previous prime is 11811318641. The next prime is 11811318683. The reversal of 11811318659 is 95681311811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11811318659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11811318359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9347 + ... + 153980.

It is an arithmetic number, because the mean of its divisors is an integer number (1687504896).

Almost surely, 2^11811318659 is an apocalyptic number.

11811318659 is a deficient number, since it is larger than the sum of its proper divisors (1688720509).

11811318659 is a wasteful number, since it uses less digits than its factorization.

11811318659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173665.

The product of its digits is 51840, while the sum is 44.

The spelling of 11811318659 in words is "eleven billion, eight hundred eleven million, three hundred eighteen thousand, six hundred fifty-nine".