71168353617 has 8 divisors (see below), whose sum is σ = 95066539840. Its totient is φ = 47357868240.

The previous prime is 71168353609. The next prime is 71168353649. The reversal of 71168353617 is 71635386117.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71168353617 - 2³ = 71168353609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71168353657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21923317 + ... + 21926562.

It is an arithmetic number, because the mean of its divisors is an integer number (11883317480).

Almost surely, 2^71168353617 is an apocalyptic number.

It is an amenable number.

71168353617 is a deficient number, since it is larger than the sum of its proper divisors (23898186223).

71168353617 is a wasteful number, since it uses less digits than its factorization.

71168353617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43850423.

The product of its digits is 635040, while the sum is 48.

The spelling of 71168353617 in words is "seventy-one billion, one hundred sixty-eight million, three hundred fifty-three thousand, six hundred seventeen".