26663221101 has 8 divisors (see below), whose sum is σ = 38782867104. Its totient is φ = 16159527920.

The previous prime is 26663221061. The next prime is 26663221103. The reversal of 26663221101 is 10112236662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26663221101 - 2¹⁵ = 26663188333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26663221103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403988166 + ... + 403988231.

It is an arithmetic number, because the mean of its divisors is an integer number (4847858388).

Almost surely, 2^26663221101 is an apocalyptic number.

It is an amenable number.

26663221101 is a deficient number, since it is larger than the sum of its proper divisors (12119646003).

26663221101 is a wasteful number, since it uses less digits than its factorization.

26663221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807976411.

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 26663221101 its reverse (10112236662), we get a palindrome (36775457763).

The spelling of 26663221101 in words is "twenty-six billion, six hundred sixty-three million, two hundred twenty-one thousand, one hundred one".