26554331161 has 4 divisors (see below), whose sum is σ = 26559734400. Its totient is φ = 26548927924.

The previous prime is 26554331159. The next prime is 26554331179. The reversal of 26554331161 is 16113345562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26554331161 - 2¹ = 26554331159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26554331161.

It is not an unprimeable number, because it can be changed into a prime (26554331191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2694241 + ... + 2704078.

It is an arithmetic number, because the mean of its divisors is an integer number (6639933600).

Almost surely, 2^26554331161 is an apocalyptic number.

It is an amenable number.

26554331161 is a deficient number, since it is larger than the sum of its proper divisors (5403239).

26554331161 is an equidigital number, since it uses as much as digits as its factorization.

26554331161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5403238.

The product of its digits is 64800, while the sum is 37.

The spelling of 26554331161 in words is "twenty-six billion, five hundred fifty-four million, three hundred thirty-one thousand, one hundred sixty-one".