26000109966 has 16 divisors (see below), whose sum is σ = 52019046144. Its totient is φ = 8663565624.

The previous prime is 26000109937. The next prime is 26000109983. The reversal of 26000109966 is 66990100062.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 766440 + ... + 799643.

It is an arithmetic number, because the mean of its divisors is an integer number (3251190384).

Almost surely, 2^26000109966 is an apocalyptic number.

26000109966 is an abundant number, since it is smaller than the sum of its proper divisors (26018936178).

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

26000109966 is a wasteful number, since it uses less digits than its factorization.

26000109966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568855.

The product of its (nonzero) digits is 34992, while the sum is 39.

The spelling of 26000109966 in words is "twenty-six billion, one hundred nine thousand, nine hundred sixty-six".