65356563612 has 48 divisors (see below), whose sum is σ = 156083558400. Its totient is φ = 21273641088.

The previous prime is 65356563581. The next prime is 65356563637. The reversal of 65356563612 is 21636565356.

65356563612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2463088 + ... + 2489480.

It is an arithmetic number, because the mean of its divisors is an integer number (3251740800).

Almost surely, 2^65356563612 is an apocalyptic number.

It is an amenable number.

65356563612 is an abundant number, since it is smaller than the sum of its proper divisors (90726994788).

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

65356563612 is a wasteful number, since it uses less digits than its factorization.

65356563612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31242 (or 31240 counting only the distinct ones).

The product of its digits is 2916000, while the sum is 48.

The spelling of 65356563612 in words is "sixty-five billion, three hundred fifty-six million, five hundred sixty-three thousand, six hundred twelve".