71104166543 has 2 divisors, whose sum is σ = 71104166544. Its totient is φ = 71104166542.

The previous prime is 71104166533. The next prime is 71104166563. The reversal of 71104166543 is 34566140117.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (34566140117) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71104166543 - 2²² = 71099972239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71104166497 and 71104166506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71104166513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35552083271 + 35552083272.

It is an arithmetic number, because the mean of its divisors is an integer number (35552083272).

Almost surely, 2^71104166543 is an apocalyptic number.

71104166543 is a deficient number, since it is larger than the sum of its proper divisors (1).

71104166543 is an equidigital number, since it uses as much as digits as its factorization.

71104166543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 71104166543 in words is "seventy-one billion, one hundred four million, one hundred sixty-six thousand, five hundred forty-three".