64818011080 has 128 divisors (see below), whose sum is σ = 149777326080. Its totient is φ = 25239029760.

The previous prime is 64818011053. The next prime is 64818011161. The reversal of 64818011080 is 8011081846.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102722365 + ... + 102722995.

It is an arithmetic number, because the mean of its divisors is an integer number (1170135360).

Almost surely, 2^64818011080 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 64818011080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74888663040).

64818011080 is an abundant number, since it is smaller than the sum of its proper divisors (84959315000).

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

64818011080 is a wasteful number, since it uses less digits than its factorization.

64818011080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 37.

The spelling of 64818011080 in words is "sixty-four billion, eight hundred eighteen million, eleven thousand, eighty".