71012566217 has 8 divisors (see below), whose sum is σ = 74103308160. Its totient is φ = 67922094240.

The previous prime is 71012566193. The next prime is 71012566241. The reversal of 71012566217 is 71266521017.

It is an interprime number because it is at equal distance from previous prime (71012566193) and next prime (71012566241).

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

It is a cyclic number.

It is not a de Polignac number, because 71012566217 - 2¹⁶ = 71012500681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71012566117) 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, 618509 + ... + 724277.

It is an arithmetic number, because the mean of its divisors is an integer number (9262913520).

Almost surely, 2^71012566217 is an apocalyptic number.

It is an amenable number.

71012566217 is a deficient number, since it is larger than the sum of its proper divisors (3090741943).

71012566217 is a wasteful number, since it uses less digits than its factorization.

71012566217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134983.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 71012566217 in words is "seventy-one billion, twelve million, five hundred sixty-six thousand, two hundred seventeen".