660944259360 has 1152 divisors, whose sum is σ = 3073748041728. Its totient is φ = 125079552000.

The previous prime is 660944259337. The next prime is 660944259383. The reversal of 660944259360 is 63952449066.

660944259360 is a `hidden beast` number, since 6 + 6 + 0 + 9 + 4 + 42 + 593 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (660944259337) and next prime (660944259383).

It is a junction number, because it is equal to n+sod(n) for n = 660944259297 and 660944259306.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 58428105 + ... + 58439415.

It is an arithmetic number, because the mean of its divisors is an integer number (2668184064).

Almost surely, 2^660944259360 is an apocalyptic number.

660944259360 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 660944259360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1536874020864).

660944259360 is an abundant number, since it is smaller than the sum of its proper divisors (2412803782368).

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

660944259360 is a wasteful number, since it uses less digits than its factorization.

660944259360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11398 (or 11387 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 54.

The spelling of 660944259360 in words is "six hundred sixty billion, nine hundred forty-four million, two hundred fifty-nine thousand, three hundred sixty".