64531153360 has 80 divisors (see below), whose sum is σ = 159124993920. Its totient is φ = 24285381120.

The previous prime is 64531153339. The next prime is 64531153363. The reversal of 64531153360 is 6335113546.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64531153363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175230 + ... + 399709.

It is an arithmetic number, because the mean of its divisors is an integer number (1989062424).

Almost surely, 2^64531153360 is an apocalyptic number.

It is an amenable number.

64531153360 is an abundant number, since it is smaller than the sum of its proper divisors (94593840560).

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

64531153360 is a wasteful number, since it uses less digits than its factorization.

64531153360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575036 (or 575030 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 64531153360 in words is "sixty-four billion, five hundred thirty-one million, one hundred fifty-three thousand, three hundred sixty".