22151340533405 has 8 divisors (see below), whose sum is σ = 27083148426072. Its totient is φ = 17386712569408.

The previous prime is 22151340533261. The next prime is 22151340533447. The reversal of 22151340533405 is 50433504315122.

It can be written as a sum of positive squares in 4 ways, for example, as 3147225017764 + 19004115515641 = 1774042^2 + 4359371^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22151340533405 - 2²⁰ = 22151339484829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41794981874 + ... + 41794982403.

It is an arithmetic number, because the mean of its divisors is an integer number (3385393553259).

Almost surely, 2^{22151340533405} is an apocalyptic number.

It is an amenable number.

22151340533405 is a deficient number, since it is larger than the sum of its proper divisors (4931807892667).

22151340533405 is an equidigital number, since it uses as much as digits as its factorization.

22151340533405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83589964335.

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 22151340533405 its reverse (50433504315122), we get a palindrome (72584844848527).

The spelling of 22151340533405 in words is "twenty-two trillion, one hundred fifty-one billion, three hundred forty million, five hundred thirty-three thousand, four hundred five".