26606221421365 has 16 divisors (see below), whose sum is σ = 32310893882880. Its totient is φ = 21030238283200.

The previous prime is 26606221421359. The next prime is 26606221421369. The reversal of 26606221421365 is 56312412260662.

It is not a de Polignac number, because 26606221421365 - 2³ = 26606221421357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26606221421369) 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, 54753499 + ... + 55237288.

It is an arithmetic number, because the mean of its divisors is an integer number (2019430867680).

Almost surely, 2^{26606221421365} is an apocalyptic number.

It is an amenable number.

26606221421365 is a deficient number, since it is larger than the sum of its proper divisors (5704672461515).

26606221421365 is a wasteful number, since it uses less digits than its factorization.

26606221421365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109991372.

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 26606221421365 in words is "twenty-six trillion, six hundred six billion, two hundred twenty-one million, four hundred twenty-one thousand, three hundred sixty-five".