656234435413 has 2 divisors, whose sum is σ = 656234435414. Its totient is φ = 656234435412.

The previous prime is 656234435399. The next prime is 656234435429. The reversal of 656234435413 is 314534432656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 646059073284 + 10175362129 = 803778^2 + 100873^2 .

It is a cyclic number.

It is not a de Polignac number, because 656234435413 - 2⁹ = 656234434901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (656234435113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328117217706 + 328117217707.

It is an arithmetic number, because the mean of its divisors is an integer number (328117217707).

Almost surely, 2^656234435413 is an apocalyptic number.

It is an amenable number.

656234435413 is a deficient number, since it is larger than the sum of its proper divisors (1).

656234435413 is an equidigital number, since it uses as much as digits as its factorization.

656234435413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3110400, while the sum is 46.

The spelling of 656234435413 in words is "six hundred fifty-six billion, two hundred thirty-four million, four hundred thirty-five thousand, four hundred thirteen".