6664502880 has 384 divisors, whose sum is σ = 27032140800. Its totient is φ = 1501949952.

The previous prime is 6664502857. The next prime is 6664502903. The reversal of 6664502880 is 882054666.

It is an interprime number because it is at equal distance from previous prime (6664502857) and next prime (6664502903).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2206011 + ... + 2209029.

It is an arithmetic number, because the mean of its divisors is an integer number (70396200).

Almost surely, 2^6664502880 is an apocalyptic number.

6664502880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6664502880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13516070400).

6664502880 is an abundant number, since it is smaller than the sum of its proper divisors (20367637920).

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

6664502880 is a wasteful number, since it uses less digits than its factorization.

6664502880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123 (or 3109 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 6664502880 is about 81636.4065843175. The cubic root of 6664502880 is about 1881.8684156073.

The spelling of 6664502880 in words is "six billion, six hundred sixty-four million, five hundred two thousand, eight hundred eighty".