11195979552 has 72 divisors (see below), whose sum is σ = 32615151660. Its totient is φ = 3640965120.

The previous prime is 11195979481. The next prime is 11195979631. The reversal of 11195979552 is 25597959111.

11195979552 is a `hidden beast` number, since 1 + 1 + 19 + 5 + 9 + 79 + 552 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11158964496 + 37015056 = 105636^2 + 6084^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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, 462277 + ... + 485892.

Almost surely, 2^11195979552 is an apocalyptic number.

11195979552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11195979552 is an abundant number, since it is smaller than the sum of its proper divisors (21419172108).

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

11195979552 is a wasteful number, since it uses less digits than its factorization.

11195979552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948226 (or 948215 counting only the distinct ones).

The product of its digits is 1275750, while the sum is 54.

The spelling of 11195979552 in words is "eleven billion, one hundred ninety-five million, nine hundred seventy-nine thousand, five hundred fifty-two".