11565066085 has 32 divisors (see below), whose sum is σ = 14880153600. Its totient is φ = 8598263808.

The previous prime is 11565066077. The next prime is 11565066101. The reversal of 11565066085 is 58066056511.

It is not a de Polignac number, because 11565066085 - 2³ = 11565066077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3351441 + ... + 3354889.

It is an arithmetic number, because the mean of its divisors is an integer number (465004800).

Almost surely, 2^11565066085 is an apocalyptic number.

It is an amenable number.

11565066085 is a deficient number, since it is larger than the sum of its proper divisors (3315087515).

11565066085 is a wasteful number, since it uses less digits than its factorization.

11565066085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3957.

The product of its (nonzero) digits is 216000, while the sum is 43.

The spelling of 11565066085 in words is "eleven billion, five hundred sixty-five million, sixty-six thousand, eighty-five".