22117005766 has 4 divisors (see below), whose sum is σ = 33175508652. Its totient is φ = 11058502882.

The previous prime is 22117005761. The next prime is 22117005773. The reversal of 22117005766 is 66750071122.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22117005761) 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 as a sum of consecutive naturals, namely, 5529251440 + ... + 5529251443.

It is an arithmetic number, because the mean of its divisors is an integer number (8293877163).

Almost surely, 2^22117005766 is an apocalyptic number.

22117005766 is a deficient number, since it is larger than the sum of its proper divisors (11058502886).

22117005766 is a wasteful number, since it uses less digits than its factorization.

22117005766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11058502885.

The product of its (nonzero) digits is 35280, while the sum is 37.

Adding to 22117005766 its reverse (66750071122), we get a palindrome (88867076888).

The spelling of 22117005766 in words is "twenty-two billion, one hundred seventeen million, five thousand, seven hundred sixty-six".