22077251966 has 32 divisors (see below), whose sum is σ = 41351724288. Its totient is φ = 8588111040.

The previous prime is 22077251947. The next prime is 22077251969. The reversal of 22077251966 is 66915277022.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22077251966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22077251969) 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 in 15 ways as a sum of consecutive naturals, for example, 12455 + ... + 210498.

It is an arithmetic number, because the mean of its divisors is an integer number (1292241384).

Almost surely, 2^22077251966 is an apocalyptic number.

22077251966 is a deficient number, since it is larger than the sum of its proper divisors (19274472322).

22077251966 is a wasteful number, since it uses less digits than its factorization.

22077251966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223616.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 22077251966 in words is "twenty-two billion, seventy-seven million, two hundred fifty-one thousand, nine hundred sixty-six".