22015380638 has 8 divisors (see below), whose sum is σ = 33725689632. Its totient is φ = 10773484096.

The previous prime is 22015380631. The next prime is 22015380659. The reversal of 22015380638 is 83608351022.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22015380631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117102995 + ... + 117103182.

It is an arithmetic number, because the mean of its divisors is an integer number (4215711204).

Almost surely, 2^22015380638 is an apocalyptic number.

22015380638 is a deficient number, since it is larger than the sum of its proper divisors (11710308994).

22015380638 is a wasteful number, since it uses less digits than its factorization.

22015380638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234206226.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 22015380638 in words is "twenty-two billion, fifteen million, three hundred eighty thousand, six hundred thirty-eight".