64164880 has 80 divisors (see below), whose sum is σ = 162489600. Its totient is φ = 23422464.

The previous prime is 64164857. The next prime is 64164937. The reversal of 64164880 is 8846146.

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

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, 106821 + ... + 107419.

It is an arithmetic number, because the mean of its divisors is an integer number (2031120).

Almost surely, 2^64164880 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 64164880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81244800).

64164880 is an abundant number, since it is smaller than the sum of its proper divisors (98324720).

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

64164880 is a wasteful number, since it uses less digits than its factorization.

64164880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 64164880 is about 8010.2983714716. The cubic root of 64164880 is about 400.3432054408.

The spelling of 64164880 in words is "sixty-four million, one hundred sixty-four thousand, eight hundred eighty".