660124080 has 640 divisors, whose sum is σ = 2928384000. Its totient is φ = 137168640.

The previous prime is 660124061. The next prime is 660124099. The reversal of 660124080 is 80421066.

It is an interprime number because it is at equal distance from previous prime (660124061) and next prime (660124099).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 60011275 + ... + 60011285.

It is an arithmetic number, because the mean of its divisors is an integer number (4575600).

Almost surely, 2^660124080 is an apocalyptic number.

660124080 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 660124080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1464192000).

660124080 is an abundant number, since it is smaller than the sum of its proper divisors (2268259920).

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

660124080 is an equidigital number, since it uses as much as digits as its factorization.

660124080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 660124080 is about 25692.8799475652. The cubic root of 660124080 is about 870.7133269814.

The spelling of 660124080 in words is "six hundred sixty million, one hundred twenty-four thousand, eighty".