22516232345513 has 4 divisors (see below), whose sum is σ = 23124779165700. Its totient is φ = 21907685525328.

The previous prime is 22516232345507. The next prime is 22516232345669. The reversal of 22516232345513 is 31554323261522.

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 10255288902544 + 12260943442969 = 3202388^2 + 3501563^2 .

It is a cyclic number.

It is not a de Polignac number, because 22516232345513 - 2¹² = 22516232341417 is a prime.

It is a super-2 number, since 2×22516232345513² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22516232348513) 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, 304273410038 + ... + 304273410111.

It is an arithmetic number, because the mean of its divisors is an integer number (5781194791425).

Almost surely, 2^{22516232345513} is an apocalyptic number.

It is an amenable number.

22516232345513 is a deficient number, since it is larger than the sum of its proper divisors (608546820187).

22516232345513 is an equidigital number, since it uses as much as digits as its factorization.

22516232345513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608546820186.

The product of its digits is 1296000, while the sum is 44.

The spelling of 22516232345513 in words is "twenty-two trillion, five hundred sixteen billion, two hundred thirty-two million, three hundred forty-five thousand, five hundred thirteen".