26554146661 has 8 divisors (see below), whose sum is σ = 30401504064. Its totient is φ = 22720266240.

The previous prime is 26554146653. The next prime is 26554146667. The reversal of 26554146661 is 16664145562.

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

It is not a de Polignac number, because 26554146661 - 2³ = 26554146653 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 (26554146667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3365020 + ... + 3372901.

It is an arithmetic number, because the mean of its divisors is an integer number (3800188008).

Almost surely, 2^26554146661 is an apocalyptic number.

It is an amenable number.

26554146661 is a deficient number, since it is larger than the sum of its proper divisors (3847357403).

26554146661 is an equidigital number, since it uses as much as digits as its factorization.

26554146661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6738491.

The product of its digits is 1036800, while the sum is 46.

The spelling of 26554146661 in words is "twenty-six billion, five hundred fifty-four million, one hundred forty-six thousand, six hundred sixty-one".