22641140635 has 4 divisors (see below), whose sum is σ = 27169368768. Its totient is φ = 18112912504.

The previous prime is 22641140611. The next prime is 22641140653. The reversal of 22641140635 is 53604114622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22641140635 - 2¹³ = 22641132443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22641140635.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2264114059 + ... + 2264114068.

It is an arithmetic number, because the mean of its divisors is an integer number (6792342192).

Almost surely, 2^22641140635 is an apocalyptic number.

22641140635 is a deficient number, since it is larger than the sum of its proper divisors (4528228133).

22641140635 is an equidigital number, since it uses as much as digits as its factorization.

22641140635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4528228132.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 22641140635 in words is "twenty-two billion, six hundred forty-one million, one hundred forty thousand, six hundred thirty-five".