22540450154 has 8 divisors (see below), whose sum is σ = 33855106788. Its totient is φ = 11255414560.

The previous prime is 22540450151. The next prime is 22540450183. The reversal of 22540450154 is 45105404522.

It can be written as a sum of positive squares in 2 ways, for example, as 13998439225 + 8542010929 = 118315^2 + 92423^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22540450154.

It is not an unprimeable number, because it can be changed into a prime (22540450151) 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, 7403357 + ... + 7406400.

Almost surely, 2^22540450154 is an apocalyptic number.

22540450154 is a deficient number, since it is larger than the sum of its proper divisors (11314656634).

22540450154 is a wasteful number, since it uses less digits than its factorization.

22540450154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14810520.

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 22540450154 its reverse (45105404522), we get a palindrome (67645854676).

The spelling of 22540450154 in words is "twenty-two billion, five hundred forty million, four hundred fifty thousand, one hundred fifty-four".