22641636203540 has 96 divisors (see below), whose sum is σ = 48478536395520. Its totient is φ = 8881473484800.

The previous prime is 22641636203521. The next prime is 22641636203591. The reversal of 22641636203540 is 4530263614622.

It is a junction number, because it is equal to n+sod(n) for n = 22641636203491 and 22641636203500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85504745 + ... + 85769135.

It is an arithmetic number, because the mean of its divisors is an integer number (504984754120).

Almost surely, 2^{22641636203540} is an apocalyptic number.

22641636203540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22641636203540 is an abundant number, since it is smaller than the sum of its proper divisors (25836900191980).

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

22641636203540 is a wasteful number, since it uses less digits than its factorization.

22641636203540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264913 (or 264911 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 22641636203540 in words is "twenty-two trillion, six hundred forty-one billion, six hundred thirty-six million, two hundred three thousand, five hundred forty".