34605990565 has 4 divisors (see below), whose sum is σ = 41527188684. Its totient is φ = 27684792448.

The previous prime is 34605990557. The next prime is 34605990569. The reversal of 34605990565 is 56509950643.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56509950643 = 241 ⋅234481123.

It can be written as a sum of positive squares in 2 ways, for example, as 23534321281 + 11071669284 = 153409^2 + 105222^2 .

It is a cyclic number.

It is not a de Polignac number, because 34605990565 - 2³ = 34605990557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34605990569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3460599052 + ... + 3460599061.

It is an arithmetic number, because the mean of its divisors is an integer number (10381797171).

Almost surely, 2^34605990565 is an apocalyptic number.

It is an amenable number.

34605990565 is a deficient number, since it is larger than the sum of its proper divisors (6921198119).

34605990565 is an equidigital number, since it uses as much as digits as its factorization.

34605990565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6921198118.

The product of its (nonzero) digits is 4374000, while the sum is 52.

The spelling of 34605990565 in words is "thirty-four billion, six hundred five million, nine hundred ninety thousand, five hundred sixty-five".