22188370385 has 8 divisors (see below), whose sum is σ = 26643816000. Its totient is φ = 17738848624.

The previous prime is 22188370381. The next prime is 22188370387. The reversal of 22188370385 is 58307388122.

It is a happy number.

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 22188370385 - 2² = 22188370381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22188370381) 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 7 ways as a sum of consecutive naturals, for example, 1472717 + ... + 1487706.

It is an arithmetic number, because the mean of its divisors is an integer number (3330477000).

Almost surely, 2^22188370385 is an apocalyptic number.

It is an amenable number.

22188370385 is a deficient number, since it is larger than the sum of its proper divisors (4455445615).

22188370385 is a wasteful number, since it uses less digits than its factorization.

22188370385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961927.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 22188370385 in words is "twenty-two billion, one hundred eighty-eight million, three hundred seventy thousand, three hundred eighty-five".