71200666170681 has 16 divisors (see below), whose sum is σ = 95568261136128. Its totient is φ = 47151083232000.

The previous prime is 71200666170671. The next prime is 71200666170701. The reversal of 71200666170681 is 18607166600217.

It is a happy number.

It is not a de Polignac number, because 71200666170681 - 2⁷ = 71200666170553 is a prime.

It is a super-2 number, since 2×71200666170681² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71200666170631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123742545 + ... + 124316606.

It is an arithmetic number, because the mean of its divisors is an integer number (5973016321008).

Almost surely, 2^{71200666170681} is an apocalyptic number.

It is an amenable number.

71200666170681 is a deficient number, since it is larger than the sum of its proper divisors (24367594965447).

71200666170681 is a wasteful number, since it uses less digits than its factorization.

71200666170681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248059792.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 71200666170681 in words is "seventy-one trillion, two hundred billion, six hundred sixty-six million, one hundred seventy thousand, six hundred eighty-one".