22155897067 has 4 divisors (see below), whose sum is σ = 22870603456. Its totient is φ = 21441190680.

The previous prime is 22155897031. The next prime is 22155897121. The reversal of 22155897067 is 76079855122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76079855122 = 2 ⋅38039927561.

It is a cyclic number.

It is not a de Polignac number, because 22155897067 - 2¹⁹ = 22155372779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22155817067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357353148 + ... + 357353209.

It is an arithmetic number, because the mean of its divisors is an integer number (5717650864).

Almost surely, 2^22155897067 is an apocalyptic number.

22155897067 is a deficient number, since it is larger than the sum of its proper divisors (714706389).

22155897067 is an equidigital number, since it uses as much as digits as its factorization.

22155897067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714706388.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The spelling of 22155897067 in words is "twenty-two billion, one hundred fifty-five million, eight hundred ninety-seven thousand, sixty-seven".