660876087017 has 8 divisors (see below), whose sum is σ = 661929765696. Its totient is φ = 659822536912.

The previous prime is 660876086977. The next prime is 660876087019. The reversal of 660876087017 is 710780678066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-660876087017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660876087019) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20427308 + ... + 20459634.

It is an arithmetic number, because the mean of its divisors is an integer number (82741220712).

Almost surely, 2^660876087017 is an apocalyptic number.

It is an amenable number.

660876087017 is a deficient number, since it is larger than the sum of its proper divisors (1053678679).

660876087017 is a wasteful number, since it uses less digits than its factorization.

660876087017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64287.

The product of its (nonzero) digits is 4741632, while the sum is 56.

The spelling of 660876087017 in words is "six hundred sixty billion, eight hundred seventy-six million, eighty-seven thousand, seventeen".