320757132497 has 2 divisors, whose sum is σ = 320757132498. Its totient is φ = 320757132496.

The previous prime is 320757132457. The next prime is 320757132529. The reversal of 320757132497 is 794231757023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 293513649361 + 27243483136 = 541769^2 + 165056^2 .

It is a cyclic number.

It is not a de Polignac number, because 320757132497 - 2¹⁶ = 320757066961 is a prime.

It is not a weakly prime, because it can be changed into another prime (320757132427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160378566248 + 160378566249.

It is an arithmetic number, because the mean of its divisors is an integer number (160378566249).

Almost surely, 2^320757132497 is an apocalyptic number.

It is an amenable number.

320757132497 is a deficient number, since it is larger than the sum of its proper divisors (1).

320757132497 is an equidigital number, since it uses as much as digits as its factorization.

320757132497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2222640, while the sum is 50.

The spelling of 320757132497 in words is "three hundred twenty billion, seven hundred fifty-seven million, one hundred thirty-two thousand, four hundred ninety-seven".