64915100688 has 160 divisors (see below), whose sum is σ = 171912139776. Its totient is φ = 21103640064.

The previous prime is 64915100687. The next prime is 64915100753. The reversal of 64915100688 is 88600151946.

64915100688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (64915100681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146534995 + ... + 146535437.

Almost surely, 2^64915100688 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 64915100688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85956069888).

64915100688 is an abundant number, since it is smaller than the sum of its proper divisors (106997039088).

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

64915100688 is a wasteful number, since it uses less digits than its factorization.

64915100688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 64915100688 in words is "sixty-four billion, nine hundred fifteen million, one hundred thousand, six hundred eighty-eight".