71081106061 has 16 divisors (see below), whose sum is σ = 86077230336. Its totient is φ = 57300662016.

The previous prime is 71081106049. The next prime is 71081106071. The reversal of 71081106061 is 16060118017.

It is a cyclic number.

It is not a de Polignac number, because 71081106061 - 2⁹ = 71081105549 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 (71081106071) 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, 55806 + ... + 381151.

It is an arithmetic number, because the mean of its divisors is an integer number (5379826896).

Almost surely, 2^71081106061 is an apocalyptic number.

It is an amenable number.

71081106061 is a deficient number, since it is larger than the sum of its proper divisors (14996124275).

71081106061 is a wasteful number, since it uses less digits than its factorization.

71081106061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438348.

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 71081106061 in words is "seventy-one billion, eighty-one million, one hundred six thousand, sixty-one".