71147164663 has 4 divisors (see below), whose sum is σ = 71299514520. Its totient is φ = 70994814808.

The previous prime is 71147164643. The next prime is 71147164681. The reversal of 71147164663 is 36646174117.

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 71147164663 - 2⁵ = 71147164631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71147164643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76174228 + ... + 76175161.

It is an arithmetic number, because the mean of its divisors is an integer number (17824878630).

Almost surely, 2^71147164663 is an apocalyptic number.

71147164663 is a deficient number, since it is larger than the sum of its proper divisors (152349857).

71147164663 is a wasteful number, since it uses less digits than its factorization.

71147164663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152349856.

The product of its digits is 508032, while the sum is 46.

The spelling of 71147164663 in words is "seventy-one billion, one hundred forty-seven million, one hundred sixty-four thousand, six hundred sixty-three".