64366738125 has 40 divisors (see below), whose sum is σ = 107626098624. Its totient is φ = 34206480000.

The previous prime is 64366738069. The next prime is 64366738129. The reversal of 64366738125 is 52183766346.

It is a de Polignac number, because none of the positive numbers 2^k-64366738125 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64366738129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 465792 + ... + 587958.

Almost surely, 2^64366738125 is an apocalyptic number.

It is an amenable number.

64366738125 is a deficient number, since it is larger than the sum of its proper divisors (43259360499).

64366738125 is a wasteful number, since it uses less digits than its factorization.

64366738125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122471 (or 122456 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 51.

The spelling of 64366738125 in words is "sixty-four billion, three hundred sixty-six million, seven hundred thirty-eight thousand, one hundred twenty-five".