22161056798 has 8 divisors (see below), whose sum is σ = 33306894360. Its totient is φ = 11058758680.

The previous prime is 22161056789. The next prime is 22161056803. The reversal of 22161056798 is 89765016122.

It is a happy number.

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

It is a super-2 number, since 2×22161056798² (a number of 21 digits) contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 10883588 + ... + 10885623.

It is an arithmetic number, because the mean of its divisors is an integer number (4163361795).

Almost surely, 2^22161056798 is an apocalyptic number.

22161056798 is a deficient number, since it is larger than the sum of its proper divisors (11145837562).

22161056798 is a wasteful number, since it uses less digits than its factorization.

22161056798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21769722.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 22161056798 in words is "twenty-two billion, one hundred sixty-one million, fifty-six thousand, seven hundred ninety-eight".