22551340351 has 4 divisors (see below), whose sum is σ = 22635174600. Its totient is φ = 22467506104.

The previous prime is 22551340349. The next prime is 22551340387. The reversal of 22551340351 is 15304315522.

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 22551340351 - 2¹ = 22551340349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22551340751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41916721 + ... + 41917258.

It is an arithmetic number, because the mean of its divisors is an integer number (5658793650).

Almost surely, 2^22551340351 is an apocalyptic number.

22551340351 is a deficient number, since it is larger than the sum of its proper divisors (83834249).

22551340351 is an equidigital number, since it uses as much as digits as its factorization.

22551340351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83834248.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 22551340351 its reverse (15304315522), we get a palindrome (37855655873).

The spelling of 22551340351 in words is "twenty-two billion, five hundred fifty-one million, three hundred forty thousand, three hundred fifty-one".