665060593397760 has 1248 divisors, whose sum is σ = 2731281957900288. Its totient is φ = 146476750602240.

The previous prime is 665060593397713. The next prime is 665060593397771. The reversal of 665060593397760 is 67793395060566.

665060593397760 is a `hidden beast` number, since 6 + 6 + 5 + 0 + 605 + 9 + 3 + 3 + 9 + 7 + 7 + 6 + 0 = 666.

It is a super-3 number, since 3×665060593397760³ (a number of 45 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9319367839 + ... + 9319439201.

It is an arithmetic number, because the mean of its divisors is an integer number (2188527209856).

Almost surely, 2^{665060593397760} is an apocalyptic number.

665060593397760 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 665060593397760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1365640978950144).

665060593397760 is an abundant number, since it is smaller than the sum of its proper divisors (2066221364502528).

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

665060593397760 is a wasteful number, since it uses less digits than its factorization.

665060593397760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71669 (or 71644 counting only the distinct ones).

The product of its (nonzero) digits is 1157360400, while the sum is 72.

The spelling of 665060593397760 in words is "six hundred sixty-five trillion, sixty billion, five hundred ninety-three million, three hundred ninety-seven thousand, seven hundred sixty".