275317026161 has 4 divisors (see below), whose sum is σ = 275372061552. Its totient is φ = 275261990772.

The previous prime is 275317026157. The next prime is 275317026169. The reversal of 275317026161 is 161620713572.

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 275317026161 - 2² = 275317026157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275317026169) 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, 27510191 + ... + 27520196.

It is an arithmetic number, because the mean of its divisors is an integer number (68843015388).

Almost surely, 2^275317026161 is an apocalyptic number.

It is an amenable number.

275317026161 is a deficient number, since it is larger than the sum of its proper divisors (55035391).

275317026161 is an equidigital number, since it uses as much as digits as its factorization.

275317026161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55035390.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 275317026161 in words is "two hundred seventy-five billion, three hundred seventeen million, twenty-six thousand, one hundred sixty-one".