11665625516 has 12 divisors (see below), whose sum is σ = 20644225560. Its totient is φ = 5767275360.

The previous prime is 11665625501. The next prime is 11665625533. The reversal of 11665625516 is 61552656611.

It is a happy 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, 16383950 + ... + 16384661.

It is an arithmetic number, because the mean of its divisors is an integer number (1720352130).

Almost surely, 2^11665625516 is an apocalyptic number.

It is an amenable number.

11665625516 is a deficient number, since it is larger than the sum of its proper divisors (8978600044).

11665625516 is a wasteful number, since it uses less digits than its factorization.

11665625516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32768704 (or 32768702 counting only the distinct ones).

The product of its digits is 324000, while the sum is 44.

The spelling of 11665625516 in words is "eleven billion, six hundred sixty-five million, six hundred twenty-five thousand, five hundred sixteen".