26642318066 has 32 divisors (see below), whose sum is σ = 49204108800. Its totient is φ = 10535898816.

The previous prime is 26642318047. The next prime is 26642318069. The reversal of 26642318066 is 66081324662.

It is a super-2 number, since 2×26642318066² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26642318069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490535 + ... + 542133.

It is an arithmetic number, because the mean of its divisors is an integer number (1537628400).

Almost surely, 2^26642318066 is an apocalyptic number.

26642318066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

26642318066 is a deficient number, since it is larger than the sum of its proper divisors (22561790734).

26642318066 is a wasteful number, since it uses less digits than its factorization.

26642318066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54458.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 26642318066 in words is "twenty-six billion, six hundred forty-two million, three hundred eighteen thousand, sixty-six".