26405666222 has 8 divisors (see below), whose sum is σ = 42655307016. Its totient is φ = 12187230552.

The previous prime is 26405666219. The next prime is 26405666227. The reversal of 26405666222 is 22266650462.

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

It is a self number, because there is not a number n which added to its sum of digits gives 26405666222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26405666227) 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, 507801248 + ... + 507801299.

It is an arithmetic number, because the mean of its divisors is an integer number (5331913377).

Almost surely, 2^26405666222 is an apocalyptic number.

26405666222 is a deficient number, since it is larger than the sum of its proper divisors (16249640794).

26405666222 is a wasteful number, since it uses less digits than its factorization.

26405666222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015602562.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 26405666222 in words is "twenty-six billion, four hundred five million, six hundred sixty-six thousand, two hundred twenty-two".