22541145140 has 24 divisors (see below), whose sum is σ = 49827795360. Its totient is φ = 8541907488.

The previous prime is 22541145089. The next prime is 22541145149. The reversal of 22541145140 is 4154114522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22541145149) 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, 29659022 + ... + 29659781.

It is an arithmetic number, because the mean of its divisors is an integer number (2076158140).

Almost surely, 2^22541145140 is an apocalyptic number.

22541145140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22541145140 is an abundant number, since it is smaller than the sum of its proper divisors (27286650220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22541145140 is a wasteful number, since it uses less digits than its factorization.

22541145140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59318831 (or 59318829 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 22541145140 its reverse (4154114522), we get a palindrome (26695259662).

The spelling of 22541145140 in words is "twenty-two billion, five hundred forty-one million, one hundred forty-five thousand, one hundred forty".