64245065120 has 96 divisors (see below), whose sum is σ = 154986193152. Its totient is φ = 25157164032.

The previous prime is 64245065119. The next prime is 64245065141. The reversal of 64245065120 is 2156054246.

It is a super-2 number, since 2×64245065120² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3918059 + ... + 3934421.

It is an arithmetic number, because the mean of its divisors is an integer number (1614439512).

Almost surely, 2^64245065120 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 64245065120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77493096576).

64245065120 is an abundant number, since it is smaller than the sum of its proper divisors (90741128032).

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

64245065120 is a wasteful number, since it uses less digits than its factorization.

64245065120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16894 (or 16886 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 64245065120 in words is "sixty-four billion, two hundred forty-five million, sixty-five thousand, one hundred twenty".