22543020115 has 48 divisors (see below), whose sum is σ = 34763834880. Its totient is φ = 13874777280.

The previous prime is 22543020067. The next prime is 22543020161. The reversal of 22543020115 is 51102034522.

It is not a de Polignac number, because 22543020115 - 2⁷ = 22543019987 is a prime.

It is a super-2 number, since 2×22543020115² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22543020115.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 159964 + ... + 265846.

It is an arithmetic number, because the mean of its divisors is an integer number (724246560).

Almost surely, 2^22543020115 is an apocalyptic number.

22543020115 is a deficient number, since it is larger than the sum of its proper divisors (12220814765).

22543020115 is a wasteful number, since it uses less digits than its factorization.

22543020115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105992 (or 105985 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 22543020115 its reverse (51102034522), we get a palindrome (73645054637).

The spelling of 22543020115 in words is "twenty-two billion, five hundred forty-three million, twenty thousand, one hundred fifteen".