64332760556 has 6 divisors (see below), whose sum is σ = 112582330980. Its totient is φ = 32166380276.

The previous prime is 64332760553. The next prime is 64332760567. The reversal of 64332760556 is 65506723346.

64332760556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 64332760556.

It is not an unprimeable number, because it can be changed into a prime (64332760553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8041595066 + ... + 8041595073.

It is an arithmetic number, because the mean of its divisors is an integer number (18763721830).

Almost surely, 2^64332760556 is an apocalyptic number.

It is an amenable number.

64332760556 is a deficient number, since it is larger than the sum of its proper divisors (48249570424).

64332760556 is a wasteful number, since it uses less digits than its factorization.

64332760556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16083190143 (or 16083190141 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 47.

The spelling of 64332760556 in words is "sixty-four billion, three hundred thirty-two million, seven hundred sixty thousand, five hundred fifty-six".