71071371185 has 16 divisors (see below), whose sum is σ = 85400856576. Its totient is φ = 56780353728.

The previous prime is 71071371169. The next prime is 71071371199. The reversal of 71071371185 is 58117317017.

It is a cyclic number.

It is not a de Polignac number, because 71071371185 - 2⁴ = 71071371169 is a prime.

It is a super-2 number, since 2×71071371185² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16161407 + ... + 16165803.

It is an arithmetic number, because the mean of its divisors is an integer number (5337553536).

Almost surely, 2^71071371185 is an apocalyptic number.

It is an amenable number.

71071371185 is a deficient number, since it is larger than the sum of its proper divisors (14329485391).

71071371185 is a wasteful number, since it uses less digits than its factorization.

71071371185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8032.

The product of its (nonzero) digits is 41160, while the sum is 41.

The spelling of 71071371185 in words is "seventy-one billion, seventy-one million, three hundred seventy-one thousand, one hundred eighty-five".