11565016508 has 12 divisors (see below), whose sum is σ = 20286854952. Its totient is φ = 5768772240.

The previous prime is 11565016483. The next prime is 11565016543. The reversal of 11565016508 is 80561056511.

It is a congruent number.

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, 3432110 + ... + 3435477.

It is an arithmetic number, because the mean of its divisors is an integer number (1690571246).

Almost surely, 2^11565016508 is an apocalyptic number.

It is an amenable number.

11565016508 is a deficient number, since it is larger than the sum of its proper divisors (8721838444).

11565016508 is a wasteful number, since it uses less digits than its factorization.

11565016508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6868012 (or 6868010 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 38.

The spelling of 11565016508 in words is "eleven billion, five hundred sixty-five million, sixteen thousand, five hundred eight".