26213166 has 64 divisors (see below), whose sum is σ = 68751360. Its totient is φ = 7244640.

The previous prime is 26213153. The next prime is 26213189. The reversal of 26213166 is 66131262.

26213166 is a `hidden beast` number, since 2 + 621 + 31 + 6 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

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 31 ways as a sum of consecutive naturals, for example, 10600 + ... + 12836.

It is an arithmetic number, because the mean of its divisors is an integer number (1074240).

Almost surely, 2^26213166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26213166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34375680).

26213166 is an abundant number, since it is smaller than the sum of its proper divisors (42538194).

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

26213166 is a wasteful number, since it uses less digits than its factorization.

26213166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286 (or 2280 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 26213166 is about 5119.8794907693. The cubic root of 26213166 is about 297.0570240471.

The spelling of 26213166 in words is "twenty-six million, two hundred thirteen thousand, one hundred sixty-six".