64656510741 has 8 divisors (see below), whose sum is σ = 95787423360. Its totient is φ = 43104340476.

The previous prime is 64656510719. The next prime is 64656510749. The reversal of 64656510741 is 14701565646.

64656510741 is a `hidden beast` number, since 6 + 4 + 6 + 565 + 10 + 74 + 1 = 666.

64656510741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64656510741 - 2⁹ = 64656510229 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64656510749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1197342765 + ... + 1197342818.

It is an arithmetic number, because the mean of its divisors is an integer number (11973427920).

Almost surely, 2^64656510741 is an apocalyptic number.

It is an amenable number.

64656510741 is a deficient number, since it is larger than the sum of its proper divisors (31130912619).

64656510741 is a wasteful number, since it uses less digits than its factorization.

64656510741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394685592 (or 2394685586 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 64656510741 in words is "sixty-four billion, six hundred fifty-six million, five hundred ten thousand, seven hundred forty-one".