22556541261540 has 192 divisors, whose sum is σ = 75778703400960. Its totient is φ = 4940221416960.

The previous prime is 22556541261497. The next prime is 22556541261563. The reversal of 22556541261540 is 4516214565522.

It is a self number, because there is not a number n which added to its sum of digits gives 22556541261540.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27564480 + ... + 28370999.

It is an arithmetic number, because the mean of its divisors is an integer number (394680746880).

Almost surely, 2^{22556541261540} is an apocalyptic number.

22556541261540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22556541261540 is an abundant number, since it is smaller than the sum of its proper divisors (53222162139420).

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

22556541261540 is a wasteful number, since it uses less digits than its factorization.

22556541261540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55935562 (or 55935560 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 48.

The spelling of 22556541261540 in words is "twenty-two trillion, five hundred fifty-six billion, five hundred forty-one million, two hundred sixty-one thousand, five hundred forty".