660552701760 has 896 divisors, whose sum is σ = 2848205306880. Its totient is φ = 140673024000.

The previous prime is 660552701729. The next prime is 660552701773. The reversal of 660552701760 is 67107255066.

660552701760 is a `hidden beast` number, since 6 + 60 + 5 + 527 + 0 + 1 + 7 + 60 = 666.

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 127 ways as a sum of consecutive naturals, for example, 103840980 + ... + 103847340.

Almost surely, 2^660552701760 is an apocalyptic number.

660552701760 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 660552701760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1424102653440).

660552701760 is an abundant number, since it is smaller than the sum of its proper divisors (2187652605120).

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

660552701760 is a wasteful number, since it uses less digits than its factorization.

660552701760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6512 (or 6496 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 660552701760 in words is "six hundred sixty billion, five hundred fifty-two million, seven hundred one thousand, seven hundred sixty".