666586127 has 8 divisors (see below), whose sum is σ = 679894560. Its totient is φ = 653386720.

The previous prime is 666586103. The next prime is 666586147. The reversal of 666586127 is 721685666.

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

It is a cyclic number.

It is not a de Polignac number, because 666586127 - 2¹² = 666582031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666586147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14852 + ... + 39417.

It is an arithmetic number, because the mean of its divisors is an integer number (84986820).

Almost surely, 2^666586127 is an apocalyptic number.

666586127 is a deficient number, since it is larger than the sum of its proper divisors (13308433).

666586127 is a wasteful number, since it uses less digits than its factorization.

666586127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54513.

The product of its digits is 725760, while the sum is 47.

The square root of 666586127 is about 25818.3292836698. The cubic root of 666586127 is about 873.5452843798.

The spelling of 666586127 in words is "six hundred sixty-six million, five hundred eighty-six thousand, one hundred twenty-seven".