660174013 has 2 divisors, whose sum is σ = 660174014. Its totient is φ = 660174012.

The previous prime is 660173999. The next prime is 660174029. The reversal of 660174013 is 310471066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 593555769 + 66618244 = 24363^2 + 8162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-660174013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663174013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330087006 + 330087007.

It is an arithmetic number, because the mean of its divisors is an integer number (330087007).

Almost surely, 2^660174013 is an apocalyptic number.

It is an amenable number.

660174013 is a deficient number, since it is larger than the sum of its proper divisors (1).

660174013 is an equidigital number, since it uses as much as digits as its factorization.

660174013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 660174013 is about 25693.8516575464. The cubic root of 660174013 is about 870.7352805473.

The spelling of 660174013 in words is "six hundred sixty million, one hundred seventy-four thousand, thirteen".