65552613644 has 12 divisors (see below), whose sum is σ = 131105227344. Its totient is φ = 28093977264.

The previous prime is 65552613631. The next prime is 65552613653. The reversal of 65552613644 is 44631625556.

65552613644 is an admirable number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

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, 1170582359 + ... + 1170582414.

It is an arithmetic number, because the mean of its divisors is an integer number (10925435612).

Almost surely, 2^65552613644 is an apocalyptic number.

It is an amenable number.

65552613644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65552613644 is a wasteful number, since it uses less digits than its factorization.

65552613644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341164784 (or 2341164782 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 47.

The spelling of 65552613644 in words is "sixty-five billion, five hundred fifty-two million, six hundred thirteen thousand, six hundred forty-four".