22240991637640 has 64 divisors (see below), whose sum is σ = 50895667785600. Its totient is φ = 8744705783808.

The previous prime is 22240991637611. The next prime is 22240991637647. The reversal of 22240991637640 is 4673619904222.

It is not an unprimeable number, because it can be changed into a prime (22240991637647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22567672 + ... + 23532568.

It is an arithmetic number, because the mean of its divisors is an integer number (795244809150).

Almost surely, 2^{22240991637640} is an apocalyptic number.

22240991637640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22240991637640 is an abundant number, since it is smaller than the sum of its proper divisors (28654676147960).

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

22240991637640 is a wasteful number, since it uses less digits than its factorization.

22240991637640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974734 (or 974730 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 22240991637640 in words is "twenty-two trillion, two hundred forty billion, nine hundred ninety-one million, six hundred thirty-seven thousand, six hundred forty".