16660260413 has 2 divisors, whose sum is σ = 16660260414. Its totient is φ = 16660260412.

The previous prime is 16660260367. The next prime is 16660260439. The reversal of 16660260413 is 31406206661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12682813924 + 3977446489 = 112618^2 + 63067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16660260413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16660260443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8330130206 + 8330130207.

It is an arithmetic number, because the mean of its divisors is an integer number (8330130207).

Almost surely, 2^16660260413 is an apocalyptic number.

It is an amenable number.

16660260413 is a deficient number, since it is larger than the sum of its proper divisors (1).

16660260413 is an equidigital number, since it uses as much as digits as its factorization.

16660260413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 16660260413 in words is "sixteen billion, six hundred sixty million, two hundred sixty thousand, four hundred thirteen".