22540230146 has 16 divisors (see below), whose sum is σ = 38871778176. Its totient is φ = 9602252736.

The previous prime is 22540230137. The next prime is 22540230149. The reversal of 22540230146 is 64103204522.

It is not an unprimeable number, because it can be changed into a prime (22540230149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4818071 + ... + 4822746.

It is an arithmetic number, because the mean of its divisors is an integer number (2429486136).

Almost surely, 2^22540230146 is an apocalyptic number.

22540230146 is a deficient number, since it is larger than the sum of its proper divisors (16331548030).

22540230146 is a wasteful number, since it uses less digits than its factorization.

22540230146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9640993.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 22540230146 its reverse (64103204522), we get a palindrome (86643434668).

The spelling of 22540230146 in words is "twenty-two billion, five hundred forty million, two hundred thirty thousand, one hundred forty-six".