64740114432 has 720 divisors, whose sum is σ = 233582049792. Its totient is φ = 17517772800.

The previous prime is 64740114407. The next prime is 64740114449. The reversal of 64740114432 is 23441104746.

64740114432 is a `hidden beast` number, since 647 + 4 + 0 + 1 + 1 + 4 + 4 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 640991182 + ... + 640991282.

Almost surely, 2^64740114432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64740114432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116791024896).

64740114432 is an abundant number, since it is smaller than the sum of its proper divisors (168841935360).

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

64740114432 is an equidigital number, since it uses as much as digits as its factorization.

64740114432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 64740114432 in words is "sixty-four billion, seven hundred forty million, one hundred fourteen thousand, four hundred thirty-two".