11618312256 has 84 divisors (see below), whose sum is σ = 33321307500. Its totient is φ = 3870501888.

The previous prime is 11618312249. The next prime is 11618312291. The reversal of 11618312256 is 65221381611.

11618312256 is a `hidden beast` number, since 1 + 1 + 618 + 3 + 12 + 25 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1745902656 + 9872409600 = 41784^2 + 99360^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 11618312256.

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, 1186870 + ... + 1196618.

Almost surely, 2^11618312256 is an apocalyptic number.

11618312256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11618312256 is an abundant number, since it is smaller than the sum of its proper divisors (21702995244).

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

11618312256 is a wasteful number, since it uses less digits than its factorization.

11618312256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11836 (or 11823 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

Adding to 11618312256 its reverse (65221381611), we get a palindrome (76839693867).

The spelling of 11618312256 in words is "eleven billion, six hundred eighteen million, three hundred twelve thousand, two hundred fifty-six".