22516514065 has 4 divisors (see below), whose sum is σ = 27019816884. Its totient is φ = 18013211248.

The previous prime is 22516514063. The next prime is 22516514087. The reversal of 22516514065 is 56041561522.

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 11193851601 + 11322662464 = 105801^2 + 106408^2 .

It is a cyclic number.

It is not a de Polignac number, because 22516514065 - 2¹ = 22516514063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22516514063) 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, 2251651402 + ... + 2251651411.

It is an arithmetic number, because the mean of its divisors is an integer number (6754954221).

Almost surely, 2^22516514065 is an apocalyptic number.

It is an amenable number.

22516514065 is a deficient number, since it is larger than the sum of its proper divisors (4503302819).

22516514065 is an equidigital number, since it uses as much as digits as its factorization.

22516514065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4503302818.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 22516514065 in words is "twenty-two billion, five hundred sixteen million, five hundred fourteen thousand, sixty-five".