64699045008 has 480 divisors, whose sum is σ = 199155919872. Its totient is φ = 17960140800.

The previous prime is 64699045001. The next prime is 64699045027. The reversal of 64699045008 is 80054099646.

It is not an unprimeable number, because it can be changed into a prime (64699045001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 667000416 + ... + 667000512.

Almost surely, 2^64699045008 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 64699045008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99577959936).

64699045008 is an abundant number, since it is smaller than the sum of its proper divisors (134456874864).

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

64699045008 is a wasteful number, since it uses less digits than its factorization.

64699045008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 64699045008 in words is "sixty-four billion, six hundred ninety-nine million, forty-five thousand, eight".