6656492413 has 2 divisors, whose sum is σ = 6656492414. Its totient is φ = 6656492412.

The previous prime is 6656492383. The next prime is 6656492429. The reversal of 6656492413 is 3142946566.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5020856164 + 1635636249 = 70858^2 + 40443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6656492413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6656493413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3328246206 + 3328246207.

It is an arithmetic number, because the mean of its divisors is an integer number (3328246207).

Almost surely, 2^6656492413 is an apocalyptic number.

It is an amenable number.

6656492413 is a deficient number, since it is larger than the sum of its proper divisors (1).

6656492413 is an equidigital number, since it uses as much as digits as its factorization.

6656492413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 46.

The square root of 6656492413 is about 81587.3299783735. The cubic root of 6656492413 is about 1881.1141363632.

The spelling of 6656492413 in words is "six billion, six hundred fifty-six million, four hundred ninety-two thousand, four hundred thirteen".