355605465491 has 2 divisors, whose sum is σ = 355605465492. Its totient is φ = 355605465490.

The previous prime is 355605465433. The next prime is 355605465511. The reversal of 355605465491 is 194564506553.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-355605465491 is a prime.

It is not a weakly prime, because it can be changed into another prime (355605465421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177802732745 + 177802732746.

It is an arithmetic number, because the mean of its divisors is an integer number (177802732746).

Almost surely, 2^355605465491 is an apocalyptic number.

355605465491 is a deficient number, since it is larger than the sum of its proper divisors (1).

355605465491 is an equidigital number, since it uses as much as digits as its factorization.

355605465491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720000, while the sum is 53.

The spelling of 355605465491 in words is "three hundred fifty-five billion, six hundred five million, four hundred sixty-five thousand, four hundred ninety-one".