660627131 has 8 divisors (see below), whose sum is σ = 696532800. Its totient is φ = 624835080.

The previous prime is 660627127. The next prime is 660627167. The reversal of 660627131 is 131726066.

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 660627131 - 2² = 660627127 is a prime.

It is a super-2 number, since 2×660627131² = 872856412426582322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660627631) 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, 16325 + ... + 39846.

It is an arithmetic number, because the mean of its divisors is an integer number (87066600).

Almost surely, 2^660627131 is an apocalyptic number.

660627131 is a deficient number, since it is larger than the sum of its proper divisors (35905669).

660627131 is a wasteful number, since it uses less digits than its factorization.

660627131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56809.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 660627131 is about 25702.6677798239. The cubic root of 660627131 is about 870.9344480336.

The spelling of 660627131 in words is "six hundred sixty million, six hundred twenty-seven thousand, one hundred thirty-one".