434536352666561 has 4 divisors (see below), whose sum is σ = 435619984469124. Its totient is φ = 433452720864000.

The previous prime is 434536352666543. The next prime is 434536352666569. The reversal of 434536352666561 is 165666253635434.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 198937061295025 + 235599291371536 = 14104505^2 + 15349244^2 .

It is a cyclic number.

It is not a de Polignac number, because 434536352666561 - 2⁶ = 434536352666497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434536352666569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541815900680 + ... + 541815901481.

It is an arithmetic number, because the mean of its divisors is an integer number (108904996117281).

Almost surely, 2^{434536352666561} is an apocalyptic number.

It is an amenable number.

434536352666561 is a deficient number, since it is larger than the sum of its proper divisors (1083631802563).

434536352666561 is a wasteful number, since it uses less digits than its factorization.

434536352666561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083631802562.

The product of its digits is 839808000, while the sum is 65.

The spelling of 434536352666561 in words is "four hundred thirty-four trillion, five hundred thirty-six billion, three hundred fifty-two million, six hundred sixty-six thousand, five hundred sixty-one".