22515140345 has 16 divisors (see below), whose sum is σ = 27957156480. Its totient is φ = 17395534464.

The previous prime is 22515140341. The next prime is 22515140371. The reversal of 22515140345 is 54304151522.

It is a cyclic number.

It is not a de Polignac number, because 22515140345 - 2² = 22515140341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22515140341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569189 + ... + 607458.

It is an arithmetic number, because the mean of its divisors is an integer number (1747322280).

Almost surely, 2^22515140345 is an apocalyptic number.

It is an amenable number.

22515140345 is a deficient number, since it is larger than the sum of its proper divisors (5442016135).

22515140345 is a wasteful number, since it uses less digits than its factorization.

22515140345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176784.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 22515140345 its reverse (54304151522), we get a palindrome (76819291867).

The spelling of 22515140345 in words is "twenty-two billion, five hundred fifteen million, one hundred forty thousand, three hundred forty-five".