26666936016 has 120 divisors (see below), whose sum is σ = 80722779840. Its totient is φ = 7563419136.

The previous prime is 26666935991. The next prime is 26666936027. The reversal of 26666936016 is 61063966662.

It is a super-2 number, since 2×26666936016² (a number of 22 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 26666936016.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 280845 + ... + 363603.

It is an arithmetic number, because the mean of its divisors is an integer number (672689832).

Almost surely, 2^26666936016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26666936016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40361389920).

26666936016 is an abundant number, since it is smaller than the sum of its proper divisors (54055843824).

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

26666936016 is a wasteful number, since it uses less digits than its factorization.

26666936016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82921 (or 82908 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 51.

The spelling of 26666936016 in words is "twenty-six billion, six hundred sixty-six million, nine hundred thirty-six thousand, sixteen".