436995094398661 has 2 divisors, whose sum is σ = 436995094398662. Its totient is φ = 436995094398660.

The previous prime is 436995094398649. The next prime is 436995094398761. The reversal of 436995094398661 is 166893490599634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 317510738206561 + 119484356192100 = 17818831^2 + 10930890^2 .

It is a cyclic number.

It is not a de Polignac number, because 436995094398661 - 2¹⁹ = 436995093874373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (436995094398761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218497547199330 + 218497547199331.

It is an arithmetic number, because the mean of its divisors is an integer number (218497547199331).

Almost surely, 2^{436995094398661} is an apocalyptic number.

It is an amenable number.

436995094398661 is a deficient number, since it is larger than the sum of its proper divisors (1).

436995094398661 is an equidigital number, since it uses as much as digits as its factorization.

436995094398661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8162933760, while the sum is 82.

The spelling of 436995094398661 in words is "four hundred thirty-six trillion, nine hundred ninety-five billion, ninety-four million, three hundred ninety-eight thousand, six hundred sixty-one".