506164199971 has 4 divisors (see below), whose sum is σ = 506167010272. Its totient is φ = 506161389672.

The previous prime is 506164199963. The next prime is 506164199987. The reversal of 506164199971 is 179991461605.

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 506164199971 - 2³ = 506164199963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506164199371) 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, 1115016 + ... + 1501861.

It is an arithmetic number, because the mean of its divisors is an integer number (126541752568).

Almost surely, 2^506164199971 is an apocalyptic number.

506164199971 is a deficient number, since it is larger than the sum of its proper divisors (2810301).

506164199971 is a wasteful number, since it uses less digits than its factorization.

506164199971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810300.

The product of its (nonzero) digits is 3674160, while the sum is 58.

The spelling of 506164199971 in words is "five hundred six billion, one hundred sixty-four million, one hundred ninety-nine thousand, nine hundred seventy-one".