26661272110 has 32 divisors (see below), whose sum is σ = 53340848352. Its totient is φ = 9512081280.

The previous prime is 26661272081. The next prime is 26661272111. The reversal of 26661272110 is 1127216662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26661272111) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2280729 + ... + 2292388.

It is an arithmetic number, because the mean of its divisors is an integer number (1666901511).

Almost surely, 2^26661272110 is an apocalyptic number.

26661272110 is an abundant number, since it is smaller than the sum of its proper divisors (26679576242).

26661272110 is a wasteful number, since it uses less digits than its factorization.

26661272110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4573188.

The product of its (nonzero) digits is 12096, while the sum is 34.

Adding to 26661272110 its reverse (1127216662), we get a palindrome (27788488772).

The spelling of 26661272110 in words is "twenty-six billion, six hundred sixty-one million, two hundred seventy-two thousand, one hundred ten".