26506223165 has 8 divisors (see below), whose sum is σ = 32484222720. Its totient is φ = 20753808592.

The previous prime is 26506223113. The next prime is 26506223171. The reversal of 26506223165 is 56132260562.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26506223165 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56395985 + ... + 56396454.

It is an arithmetic number, because the mean of its divisors is an integer number (4060527840).

Almost surely, 2^26506223165 is an apocalyptic number.

It is an amenable number.

26506223165 is a deficient number, since it is larger than the sum of its proper divisors (5977999555).

26506223165 is a wasteful number, since it uses less digits than its factorization.

26506223165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112792491.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 26506223165 in words is "twenty-six billion, five hundred six million, two hundred twenty-three thousand, one hundred sixty-five".