22064939518 has 4 divisors (see below), whose sum is σ = 33097409280. Its totient is φ = 11032469758.

The previous prime is 22064939509. The next prime is 22064939521. The reversal of 22064939518 is 81593946022.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5516234878 + ... + 5516234881.

It is an arithmetic number, because the mean of its divisors is an integer number (8274352320).

Almost surely, 2^22064939518 is an apocalyptic number.

22064939518 is a deficient number, since it is larger than the sum of its proper divisors (11032469762).

22064939518 is a wasteful number, since it uses less digits than its factorization.

22064939518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11032469761.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 22064939518 in words is "twenty-two billion, sixty-four million, nine hundred thirty-nine thousand, five hundred eighteen".