26666662422606 has 32 divisors (see below), whose sum is σ = 53360671553280. Its totient is φ = 8884330346304.

The previous prime is 26666662422599. The next prime is 26666662422737. The reversal of 26666662422606 is 60622426666662.

It is a happy number.

It is a super-2 number, since 2×26666662422606² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26666662422606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178760706 + ... + 178909818.

It is an arithmetic number, because the mean of its divisors is an integer number (1667520986040).

Almost surely, 2^{26666662422606} is an apocalyptic number.

26666662422606 is an abundant number, since it is smaller than the sum of its proper divisors (26694009130674).

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

26666662422606 is a wasteful number, since it uses less digits than its factorization.

26666662422606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164200.

The product of its (nonzero) digits is 107495424, while the sum is 60.

The spelling of 26666662422606 in words is "twenty-six trillion, six hundred sixty-six billion, six hundred sixty-two million, four hundred twenty-two thousand, six hundred six".