172665142316441 has 4 divisors (see below), whose sum is σ = 172667150160000. Its totient is φ = 172663134472884.

The previous prime is 172665142316417. The next prime is 172665142316449. The reversal of 172665142316441 is 144613241566271.

172665142316441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 172665142316441 - 2²² = 172665138122137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172665142316449) 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, 1003792781 + ... + 1003964778.

It is an arithmetic number, because the mean of its divisors is an integer number (43166787540000).

Almost surely, 2^{172665142316441} is an apocalyptic number.

It is an amenable number.

172665142316441 is a deficient number, since it is larger than the sum of its proper divisors (2007843559).

172665142316441 is an equidigital number, since it uses as much as digits as its factorization.

172665142316441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007843558.

The product of its digits is 5806080, while the sum is 53.

The spelling of 172665142316441 in words is "one hundred seventy-two trillion, six hundred sixty-five billion, one hundred forty-two million, three hundred sixteen thousand, four hundred forty-one".