172655484556271 has 4 divisors (see below), whose sum is σ = 175485902335944. Its totient is φ = 169825066776600.

The previous prime is 172655484556213. The next prime is 172655484556309.

It is a happy number.

172655484556271 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 172655484556271 - 2⁶ = 172655484556207 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 (172655484556211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1415208889745 + ... + 1415208889866.

It is an arithmetic number, because the mean of its divisors is an integer number (43871475583986).

Almost surely, 2^{172655484556271} is an apocalyptic number.

172655484556271 is a deficient number, since it is larger than the sum of its proper divisors (2830417779673).

172655484556271 is an equidigital number, since it uses as much as digits as its factorization.

172655484556271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830417779672.

The product of its digits is 564480000, while the sum is 68.

The spelling of 172655484556271 in words is "one hundred seventy-two trillion, six hundred fifty-five billion, four hundred eighty-four million, five hundred fifty-six thousand, two hundred seventy-one".