26221000065 has 64 divisors (see below), whose sum is σ = 47626656000. Its totient is φ = 12211928064.

The previous prime is 26221000037. The next prime is 26221000079. The reversal of 26221000065 is 56000012262.

It is not a de Polignac number, because 26221000065 - 2⁵ = 26221000033 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26220999999 and 26221000044.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2800011 + ... + 2809359.

It is an arithmetic number, because the mean of its divisors is an integer number (744166500).

Almost surely, 2^26221000065 is an apocalyptic number.

It is an amenable number.

26221000065 is a deficient number, since it is larger than the sum of its proper divisors (21405655935).

26221000065 is a wasteful number, since it uses less digits than its factorization.

26221000065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10146.

The product of its (nonzero) digits is 1440, while the sum is 24.

The spelling of 26221000065 in words is "twenty-six billion, two hundred twenty-one million, sixty-five", and thus it is an aban number.