11317648656 has 40 divisors (see below), whose sum is σ = 29242815840. Its totient is φ = 3771832576.

The previous prime is 11317648631. The next prime is 11317648669. The reversal of 11317648656 is 65684671311.

It is a super-2 number, since 2×11317648656² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272911 + ... + 311633.

It is an arithmetic number, because the mean of its divisors is an integer number (731070396).

Almost surely, 2^11317648656 is an apocalyptic number.

11317648656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11317648656 is an abundant number, since it is smaller than the sum of its proper divisors (17925167184).

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

11317648656 is a wasteful number, since it uses less digits than its factorization.

11317648656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44823 (or 44817 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The spelling of 11317648656 in words is "eleven billion, three hundred seventeen million, six hundred forty-eight thousand, six hundred fifty-six".