22541144540 has 24 divisors (see below), whose sum is σ = 48343563072. Its totient is φ = 8824617920.

The previous prime is 22541144537. The next prime is 22541144567. The reversal of 22541144540 is 4544114522.

It is a junction number, because it is equal to n+sod(n) for n = 22541144497 and 22541144506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11989031 + ... + 11990910.

It is an arithmetic number, because the mean of its divisors is an integer number (2014315128).

Almost surely, 2^22541144540 is an apocalyptic number.

22541144540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22541144540 is an abundant number, since it is smaller than the sum of its proper divisors (25802418532).

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

22541144540 is a wasteful number, since it uses less digits than its factorization.

22541144540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23979997 (or 23979995 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The spelling of 22541144540 in words is "twenty-two billion, five hundred forty-one million, one hundred forty-four thousand, five hundred forty".