666127627 has 6 divisors (see below), whose sum is σ = 732190004. Its totient is φ = 605570460.

The previous prime is 666127571. The next prime is 666127639. The reversal of 666127627 is 726721666.

666127627 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 666127627 - 2⁷ = 666127499 is a prime.

It is a super-2 number, since 2×666127627² = 887452030905302258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (666122627) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2752473 + ... + 2752714.

Almost surely, 2^666127627 is an apocalyptic number.

666127627 is a deficient number, since it is larger than the sum of its proper divisors (66062377).

666127627 is a wasteful number, since it uses less digits than its factorization.

666127627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5505209 (or 5505198 counting only the distinct ones).

The product of its digits is 254016, while the sum is 43.

The square root of 666127627 is about 25809.4484055743. The cubic root of 666127627 is about 873.3449539888.

The spelling of 666127627 in words is "six hundred sixty-six million, one hundred twenty-seven thousand, six hundred twenty-seven".