64089165888 has 252 divisors, whose sum is σ = 208438723584. Its totient is φ = 18793843200.

The previous prime is 64089165887. The next prime is 64089165893. The reversal of 64089165888 is 88856198046.

64089165888 is a `hidden beast` number, since 6 + 40 + 8 + 9 + 1 + 6 + 588 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (64089165887) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2145745 + ... + 2175407.

It is an arithmetic number, because the mean of its divisors is an integer number (827137792).

Almost surely, 2^64089165888 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 64089165888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104219361792).

64089165888 is an abundant number, since it is smaller than the sum of its proper divisors (144349557696).

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

64089165888 is a wasteful number, since it uses less digits than its factorization.

64089165888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29734 (or 29710 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 63.

The spelling of 64089165888 in words is "sixty-four billion, eighty-nine million, one hundred sixty-five thousand, eight hundred eighty-eight".