660372725760 has 448 divisors, whose sum is σ = 2315347265664. Its totient is φ = 159383552000.

The previous prime is 660372725723. The next prime is 660372725767. The reversal of 660372725760 is 67527273066.

It is not an unprimeable number, because it can be changed into a prime (660372725767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 347380810 + ... + 347382710.

Almost surely, 2^660372725760 is an apocalyptic number.

660372725760 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 660372725760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1157673632832).

660372725760 is an abundant number, since it is smaller than the sum of its proper divisors (1654974539904).

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

660372725760 is a wasteful number, since it uses less digits than its factorization.

660372725760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203 (or 2179 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 51.

The spelling of 660372725760 in words is "six hundred sixty billion, three hundred seventy-two million, seven hundred twenty-five thousand, seven hundred sixty".