64151111680 has 96 divisors (see below), whose sum is σ = 155781662400. Its totient is φ = 25350946816.

The previous prime is 64151111663. The next prime is 64151111707. The reversal of 64151111680 is 8611115146.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812181 + ... + 887659.

It is an arithmetic number, because the mean of its divisors is an integer number (1622725650).

Almost surely, 2^64151111680 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 64151111680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77890831200).

64151111680 is an abundant number, since it is smaller than the sum of its proper divisors (91630550720).

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

64151111680 is an equidigital number, since it uses as much as digits as its factorization.

64151111680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75589 (or 75569 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 34.

The spelling of 64151111680 in words is "sixty-four billion, one hundred fifty-one million, one hundred eleven thousand, six hundred eighty".