11565565152 has 48 divisors (see below), whose sum is σ = 30874193280. Its totient is φ = 3789844352.

The previous prime is 11565565147. The next prime is 11565565163. The reversal of 11565565152 is 25156556511.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 1015308 + ... + 1026635.

It is an arithmetic number, because the mean of its divisors is an integer number (643212360).

Almost surely, 2^11565565152 is an apocalyptic number.

11565565152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11565565152 is an abundant number, since it is smaller than the sum of its proper divisors (19308628128).

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

11565565152 is a wasteful number, since it uses less digits than its factorization.

11565565152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042015 (or 2042007 counting only the distinct ones).

The product of its digits is 225000, while the sum is 42.

The spelling of 11565565152 in words is "eleven billion, five hundred sixty-five million, five hundred sixty-five thousand, one hundred fifty-two".