11253580218 has 12 divisors (see below), whose sum is σ = 24382757178. Its totient is φ = 3751193400.

The previous prime is 11253580213. The next prime is 11253580223. The reversal of 11253580218 is 81208535211.

11253580218 is a `hidden beast` number, since 1 + 1 + 2 + 53 + 580 + 21 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (11253580213) and next prime (11253580223).

It can be written as a sum of positive squares in only one way, i.e., 6064827129 + 5188753089 = 77877^2 + 72033^2 .

It is not an unprimeable number, because it can be changed into a prime (11253580213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 312599433 + ... + 312599468.

Almost surely, 2^11253580218 is an apocalyptic number.

11253580218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11253580218 is an abundant number, since it is smaller than the sum of its proper divisors (13129176960).

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

11253580218 is a wasteful number, since it uses less digits than its factorization.

11253580218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625198909 (or 625198906 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The spelling of 11253580218 in words is "eleven billion, two hundred fifty-three million, five hundred eighty thousand, two hundred eighteen".