666017514612260 has 12 divisors (see below), whose sum is σ = 1398636780685788. Its totient is φ = 266407005844896.

The previous prime is 666017514612251. The next prime is 666017514612277. The reversal of 666017514612260 is 62216415710666.

It can be written as a sum of positive squares in 2 ways, for example, as 526105143268324 + 139912371343936 = 22936982^2 + 11828456^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16650437865287 + ... + 16650437865326.

It is an arithmetic number, because the mean of its divisors is an integer number (116553065057149).

Almost surely, 2^{666017514612260} is an apocalyptic number.

It is an amenable number.

666017514612260 is an abundant number, since it is smaller than the sum of its proper divisors (732619266073528).

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

666017514612260 is a wasteful number, since it uses less digits than its factorization.

666017514612260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33300875730622 (or 33300875730620 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 666017514612260 in words is "six hundred sixty-six trillion, seventeen billion, five hundred fourteen million, six hundred twelve thousand, two hundred sixty".