353156906561 has 2 divisors, whose sum is σ = 353156906562. Its totient is φ = 353156906560.

The previous prime is 353156906503. The next prime is 353156906617. The reversal of 353156906561 is 165609651353.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294815334961 + 58341571600 = 542969^2 + 241540^2 .

It is a cyclic number.

It is not a de Polignac number, because 353156906561 - 2⁶ = 353156906497 is a prime.

It is not a weakly prime, because it can be changed into another prime (353156906261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176578453280 + 176578453281.

It is an arithmetic number, because the mean of its divisors is an integer number (176578453281).

Almost surely, 2^353156906561 is an apocalyptic number.

It is an amenable number.

353156906561 is a deficient number, since it is larger than the sum of its proper divisors (1).

353156906561 is an equidigital number, since it uses as much as digits as its factorization.

353156906561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2187000, while the sum is 50.

The spelling of 353156906561 in words is "three hundred fifty-three billion, one hundred fifty-six million, nine hundred six thousand, five hundred sixty-one".