26566046472321 has 8 divisors (see below), whose sum is σ = 39357105884960. Its totient is φ = 17710697648196.

The previous prime is 26566046472307. The next prime is 26566046472337. The reversal of 26566046472321 is 12327464066562.

26566046472321 is a `hidden beast` number, since 2 + 6 + 5 + 6 + 604 + 6 + 4 + 7 + 2 + 3 + 21 = 666.

It is not a de Polignac number, because 26566046472321 - 2⁶ = 26566046472257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26566046472521) 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, 491963823535 + ... + 491963823588.

It is an arithmetic number, because the mean of its divisors is an integer number (4919638235620).

Almost surely, 2^{26566046472321} is an apocalyptic number.

It is an amenable number.

26566046472321 is a deficient number, since it is larger than the sum of its proper divisors (12791059412639).

26566046472321 is an equidigital number, since it uses as much as digits as its factorization.

26566046472321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983927647132 (or 983927647126 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 54.

The spelling of 26566046472321 in words is "twenty-six trillion, five hundred sixty-six billion, forty-six million, four hundred seventy-two thousand, three hundred twenty-one".