671272533163 has 4 divisors (see below), whose sum is σ = 677430996880. Its totient is φ = 665114069448.

The previous prime is 671272533109. The next prime is 671272533203. The reversal of 671272533163 is 361335272176.

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 671272533163 - 2²⁵ = 671238978731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671272533103) 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, 3079231695 + ... + 3079231912.

It is an arithmetic number, because the mean of its divisors is an integer number (169357749220).

Almost surely, 2^671272533163 is an apocalyptic number.

671272533163 is a deficient number, since it is larger than the sum of its proper divisors (6158463717).

671272533163 is a wasteful number, since it uses less digits than its factorization.

671272533163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6158463716.

The product of its digits is 952560, while the sum is 46.

The spelling of 671272533163 in words is "six hundred seventy-one billion, two hundred seventy-two million, five hundred thirty-three thousand, one hundred sixty-three".