11567005065 has 64 divisors (see below), whose sum is σ = 25637713920. Its totient is φ = 4807062720.

The previous prime is 11567005033. The next prime is 11567005067. The reversal of 11567005065 is 56050076511.

It is not a de Polignac number, because 11567005065 - 2⁵ = 11567005033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11567005067) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 545979 + ... + 566768.

It is an arithmetic number, because the mean of its divisors is an integer number (400589280).

Almost surely, 2^11567005065 is an apocalyptic number.

11567005065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11567005065 is an abundant number, since it is smaller than the sum of its proper divisors (14070708855).

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

11567005065 is a wasteful number, since it uses less digits than its factorization.

11567005065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112779 (or 1112773 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The spelling of 11567005065 in words is "eleven billion, five hundred sixty-seven million, five thousand, sixty-five".