71630667525171 has 4 divisors (see below), whose sum is σ = 95507556700232. Its totient is φ = 47753778350112.

The previous prime is 71630667525143. The next prime is 71630667525187. The reversal of 71630667525171 is 17152576603617.

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

It is not a de Polignac number, because 71630667525171 - 2⁵ = 71630667525139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71630667525101) 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, 11938444587526 + ... + 11938444587531.

It is an arithmetic number, because the mean of its divisors is an integer number (23876889175058).

Almost surely, 2^{71630667525171} is an apocalyptic number.

71630667525171 is a deficient number, since it is larger than the sum of its proper divisors (23876889175061).

71630667525171 is a wasteful number, since it uses less digits than its factorization.

71630667525171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23876889175060.

The product of its (nonzero) digits is 11113200, while the sum is 57.

The spelling of 71630667525171 in words is "seventy-one trillion, six hundred thirty billion, six hundred sixty-seven million, five hundred twenty-five thousand, one hundred seventy-one".