71062516057 has 16 divisors (see below), whose sum is σ = 76915197072. Its totient is φ = 65265868800.

The previous prime is 71062516043. The next prime is 71062516073. The reversal of 71062516057 is 75061526017.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2926377216 + 68136138841 = 54096^2 + 261029^2 .

It is a cyclic number.

It is not a de Polignac number, because 71062516057 - 2¹⁹ = 71061991769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71062516027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2052393 + ... + 2086729.

It is an arithmetic number, because the mean of its divisors is an integer number (4807199817).

Almost surely, 2^71062516057 is an apocalyptic number.

It is an amenable number.

71062516057 is a deficient number, since it is larger than the sum of its proper divisors (5852681015).

71062516057 is a wasteful number, since it uses less digits than its factorization.

71062516057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35148.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 71062516057 in words is "seventy-one billion, sixty-two million, five hundred sixteen thousand, fifty-seven".