34357320565 has 16 divisors (see below), whose sum is σ = 42406233408. Its totient is φ = 26707516416.

The previous prime is 34357320527. The next prime is 34357320577. The reversal of 34357320565 is 56502375343.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34357320565 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372499 + ... + 455488.

It is an arithmetic number, because the mean of its divisors is an integer number (2650389588).

Almost surely, 2^34357320565 is an apocalyptic number.

It is an amenable number.

34357320565 is a deficient number, since it is larger than the sum of its proper divisors (8048912843).

34357320565 is a wasteful number, since it uses less digits than its factorization.

34357320565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828228.

The product of its (nonzero) digits is 1134000, while the sum is 43.

The spelling of 34357320565 in words is "thirty-four billion, three hundred fifty-seven million, three hundred twenty thousand, five hundred sixty-five".