22251653361 has 24 divisors (see below), whose sum is σ = 36872584320. Its totient is φ = 12666874176.

The previous prime is 22251653357. The next prime is 22251653429. The reversal of 22251653361 is 16335615222.

It is not a de Polignac number, because 22251653361 - 2² = 22251653357 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22251653321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 654916 + ... + 688053.

It is an arithmetic number, because the mean of its divisors is an integer number (1536357680).

Almost surely, 2^22251653361 is an apocalyptic number.

22251653361 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22251653361 is a deficient number, since it is larger than the sum of its proper divisors (14620930959).

22251653361 is a wasteful number, since it uses less digits than its factorization.

22251653361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343245 (or 1343242 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The spelling of 22251653361 in words is "twenty-two billion, two hundred fifty-one million, six hundred fifty-three thousand, three hundred sixty-one".