660125427 has 16 divisors (see below), whose sum is σ = 952794528. Its totient is φ = 404121600.

The previous prime is 660125413. The next prime is 660125437. The reversal of 660125427 is 724521066.

It is not a de Polignac number, because 660125427 - 2⁶ = 660125363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (660125407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36324 + ... + 51377.

It is an arithmetic number, because the mean of its divisors is an integer number (59549658).

Almost surely, 2^660125427 is an apocalyptic number.

660125427 is a deficient number, since it is larger than the sum of its proper divisors (292669101).

660125427 is a wasteful number, since it uses less digits than its factorization.

660125427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87910.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 660125427 is about 25692.9061610399. The cubic root of 660125427 is about 870.7139192186.

The spelling of 660125427 in words is "six hundred sixty million, one hundred twenty-five thousand, four hundred twenty-seven".