229429522865 has 4 divisors (see below), whose sum is σ = 275315427444. Its totient is φ = 183543618288.

The previous prime is 229429522837. The next prime is 229429522963. The reversal of 229429522865 is 568225924922.

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 54197702416 + 175231820449 = 232804^2 + 418607^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229429522865 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 229429522865.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22942952282 + ... + 22942952291.

It is an arithmetic number, because the mean of its divisors is an integer number (68828856861).

Almost surely, 2^229429522865 is an apocalyptic number.

It is an amenable number.

229429522865 is a deficient number, since it is larger than the sum of its proper divisors (45885904579).

229429522865 is an equidigital number, since it uses as much as digits as its factorization.

229429522865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45885904578.

The product of its digits is 12441600, while the sum is 56.

The spelling of 229429522865 in words is "two hundred twenty-nine billion, four hundred twenty-nine million, five hundred twenty-two thousand, eight hundred sixty-five".