6658866480 has 160 divisors (see below), whose sum is σ = 24140312064. Its totient is φ = 1486614528.

The previous prime is 6658866469. The next prime is 6658866491. The reversal of 6658866480 is 846688566.

It is an interprime number because it is at equal distance from previous prime (6658866469) and next prime (6658866491).

It is a self number, because there is not a number n which added to its sum of digits gives 6658866480.

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, 26152 + ... + 118328.

Almost surely, 2^6658866480 is an apocalyptic number.

6658866480 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 6658866480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12070156032).

6658866480 is an abundant number, since it is smaller than the sum of its proper divisors (17481445584).

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

6658866480 is a wasteful number, since it uses less digits than its factorization.

6658866480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92243 (or 92237 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 57.

The square root of 6658866480 is about 81601.8779195675. The cubic root of 6658866480 is about 1881.3377456304.

The spelling of 6658866480 in words is "six billion, six hundred fifty-eight million, eight hundred sixty-six thousand, four hundred eighty".