71416972163 has 4 divisors (see below), whose sum is σ = 71450773128. Its totient is φ = 71383171200.

The previous prime is 71416972157. The next prime is 71416972189. The reversal of 71416972163 is 36127961417.

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 71416972163 - 2¹⁸ = 71416710019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71416972153) 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, 16897313 + ... + 16901538.

It is an arithmetic number, because the mean of its divisors is an integer number (17862693282).

Almost surely, 2^71416972163 is an apocalyptic number.

71416972163 is a deficient number, since it is larger than the sum of its proper divisors (33800965).

71416972163 is a wasteful number, since it uses less digits than its factorization.

71416972163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33800964.

The product of its digits is 381024, while the sum is 47.

The spelling of 71416972163 in words is "seventy-one billion, four hundred sixteen million, nine hundred seventy-two thousand, one hundred sixty-three".