11995232418 has 48 divisors (see below), whose sum is σ = 29461985280. Its totient is φ = 3496584672.

The previous prime is 11995232393. The next prime is 11995232449. The reversal of 11995232418 is 81423259911.

11995232418 is a `hidden beast` number, since 1 + 1 + 99 + 523 + 24 + 18 = 666.

11995232418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1344546 + ... + 1353437.

It is an arithmetic number, because the mean of its divisors is an integer number (613791360).

Almost surely, 2^11995232418 is an apocalyptic number.

11995232418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11995232418 is an abundant number, since it is smaller than the sum of its proper divisors (17466752862).

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

11995232418 is a wasteful number, since it uses less digits than its factorization.

11995232418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698023 (or 2698020 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The spelling of 11995232418 in words is "eleven billion, nine hundred ninety-five million, two hundred thirty-two thousand, four hundred eighteen".