329856806137 has 2 divisors, whose sum is σ = 329856806138. Its totient is φ = 329856806136.

The previous prime is 329856806077. The next prime is 329856806219. The reversal of 329856806137 is 731608658923.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325032253456 + 4824552681 = 570116^2 + 69459^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-329856806137 is a prime.

It is not a weakly prime, because it can be changed into another prime (329856806737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164928403068 + 164928403069.

It is an arithmetic number, because the mean of its divisors is an integer number (164928403069).

Almost surely, 2^329856806137 is an apocalyptic number.

It is an amenable number.

329856806137 is a deficient number, since it is larger than the sum of its proper divisors (1).

329856806137 is an equidigital number, since it uses as much as digits as its factorization.

329856806137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 329856806137 in words is "three hundred twenty-nine billion, eight hundred fifty-six million, eight hundred six thousand, one hundred thirty-seven".