320157826553 has 2 divisors, whose sum is σ = 320157826554. Its totient is φ = 320157826552.

The previous prime is 320157826543. The next prime is 320157826561. The reversal of 320157826553 is 355628751023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219663754489 + 100494072064 = 468683^2 + 317008^2 .

It is a cyclic number.

It is not a de Polignac number, because 320157826553 - 2⁸ = 320157826297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320157826498 and 320157826507.

It is not a weakly prime, because it can be changed into another prime (320157826543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160078913276 + 160078913277.

It is an arithmetic number, because the mean of its divisors is an integer number (160078913277).

Almost surely, 2^320157826553 is an apocalyptic number.

It is an amenable number.

320157826553 is a deficient number, since it is larger than the sum of its proper divisors (1).

320157826553 is an equidigital number, since it uses as much as digits as its factorization.

320157826553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 320157826553 in words is "three hundred twenty billion, one hundred fifty-seven million, eight hundred twenty-six thousand, five hundred fifty-three".