71011515071 has 16 divisors (see below), whose sum is σ = 86282371584. Its totient is φ = 57122111904.

The previous prime is 71011515041. The next prime is 71011515073. The reversal of 71011515071 is 17051511017.

It is a cyclic number.

It is not a de Polignac number, because 71011515071 - 2¹⁴ = 71011498687 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 (71011515073) 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, 4152461 + ... + 4169526.

It is an arithmetic number, because the mean of its divisors is an integer number (5392648224).

Almost surely, 2^71011515071 is an apocalyptic number.

71011515071 is a deficient number, since it is larger than the sum of its proper divisors (15270856513).

71011515071 is a wasteful number, since it uses less digits than its factorization.

71011515071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8322070.

The product of its (nonzero) digits is 1225, while the sum is 29.

The spelling of 71011515071 in words is "seventy-one billion, eleven million, five hundred fifteen thousand, seventy-one".