26721203222255 has 16 divisors (see below), whose sum is σ = 32128706430048. Its totient is φ = 21334797360000.

The previous prime is 26721203222083. The next prime is 26721203222257. The reversal of 26721203222255 is 55222230212762.

It is not a de Polignac number, because 26721203222255 - 2²⁶ = 26721136113391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26721203222257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21303500 + ... + 22522910.

It is an arithmetic number, because the mean of its divisors is an integer number (2008044151878).

Almost surely, 2^{26721203222255} is an apocalyptic number.

26721203222255 is a deficient number, since it is larger than the sum of its proper divisors (5407503207793).

26721203222255 is a wasteful number, since it uses less digits than its factorization.

26721203222255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228058.

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 26721203222255 in words is "twenty-six trillion, seven hundred twenty-one billion, two hundred three million, two hundred twenty-two thousand, two hundred fifty-five".