65585772088 has 16 divisors (see below), whose sum is σ = 123156056880. Its totient is φ = 32744156928.

The previous prime is 65585772071. The next prime is 65585772151. The reversal of 65585772088 is 88027758556.

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, 6085420 + ... + 6096187.

It is an arithmetic number, because the mean of its divisors is an integer number (7697253555).

Almost surely, 2^65585772088 is an apocalyptic number.

It is an amenable number.

65585772088 is a deficient number, since it is larger than the sum of its proper divisors (57570284792).

65585772088 is a wasteful number, since it uses less digits than its factorization.

65585772088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12182286 (or 12182282 counting only the distinct ones).

The product of its (nonzero) digits is 37632000, while the sum is 61.

The spelling of 65585772088 in words is "sixty-five billion, five hundred eighty-five million, seven hundred seventy-two thousand, eighty-eight".