26736361020666 has 128 divisors (see below), whose sum is σ = 65569707878400. Its totient is φ = 8007714000000.

The previous prime is 26736361020539. The next prime is 26736361020673. The reversal of 26736361020666 is 66602016363762.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 134762041 + ... + 134960291.

It is an arithmetic number, because the mean of its divisors is an integer number (512263342800).

Almost surely, 2^{26736361020666} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26736361020666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32784853939200).

26736361020666 is an abundant number, since it is smaller than the sum of its proper divisors (38833346857734).

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

26736361020666 is a wasteful number, since it uses less digits than its factorization.

26736361020666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200913 (or 200907 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 54.

The spelling of 26736361020666 in words is "twenty-six trillion, seven hundred thirty-six billion, three hundred sixty-one million, twenty thousand, six hundred sixty-six".