26166105894 has 32 divisors (see below), whose sum is σ = 54616333824. Its totient is φ = 8341470720.

The previous prime is 26166105869. The next prime is 26166105899. The reversal of 26166105894 is 49850166162.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26166105899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1181487 + ... + 1203429.

It is an arithmetic number, because the mean of its divisors is an integer number (1706760432).

Almost surely, 2^26166105894 is an apocalyptic number.

26166105894 is an abundant number, since it is smaller than the sum of its proper divisors (28450227930).

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

26166105894 is a wasteful number, since it uses less digits than its factorization.

26166105894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30612.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 26166105894 in words is "twenty-six billion, one hundred sixty-six million, one hundred five thousand, eight hundred ninety-four".