26664440022 has 24 divisors (see below), whose sum is σ = 63025040520. Its totient is φ = 8080133280.

The previous prime is 26664440009. The next prime is 26664440053. The reversal of 26664440022 is 22004446662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67334247 + ... + 67334642.

It is an arithmetic number, because the mean of its divisors is an integer number (2626043355).

Almost surely, 2^26664440022 is an apocalyptic number.

26664440022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

26664440022 is an abundant number, since it is smaller than the sum of its proper divisors (36360600498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26664440022 is a wasteful number, since it uses less digits than its factorization.

26664440022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134668908 (or 134668905 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 26664440022 its reverse (22004446662), we get a palindrome (48668886684).

The spelling of 26664440022 in words is "twenty-six billion, six hundred sixty-four million, four hundred forty thousand, twenty-two".