64655133713 has 4 divisors (see below), whose sum is σ = 64655795568. Its totient is φ = 64654471860.

The previous prime is 64655133691. The next prime is 64655133727. The reversal of 64655133713 is 31733155646.

64655133713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 64655133713 - 2²⁰ = 64654085137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64655133773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152231 + ... + 390492.

It is an arithmetic number, because the mean of its divisors is an integer number (16163948892).

Almost surely, 2^64655133713 is an apocalyptic number.

It is an amenable number.

64655133713 is a deficient number, since it is larger than the sum of its proper divisors (661855).

64655133713 is a wasteful number, since it uses less digits than its factorization.

64655133713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661854.

The product of its digits is 680400, while the sum is 44.

The spelling of 64655133713 in words is "sixty-four billion, six hundred fifty-five million, one hundred thirty-three thousand, seven hundred thirteen".