11565347532 has 12 divisors (see below), whose sum is σ = 26985810936. Its totient is φ = 3855115840.

The previous prime is 11565347513. The next prime is 11565347551. The reversal of 11565347532 is 23574356511.

It is an interprime number because it is at equal distance from previous prime (11565347513) and next prime (11565347551).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481889469 + ... + 481889492.

It is an arithmetic number, because the mean of its divisors is an integer number (2248817578).

Almost surely, 2^11565347532 is an apocalyptic number.

11565347532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11565347532 is an abundant number, since it is smaller than the sum of its proper divisors (15420463404).

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

11565347532 is a wasteful number, since it uses less digits than its factorization.

11565347532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963778968 (or 963778966 counting only the distinct ones).

The product of its digits is 378000, while the sum is 42.

The spelling of 11565347532 in words is "eleven billion, five hundred sixty-five million, three hundred forty-seven thousand, five hundred thirty-two".