71061030663653 has 2 divisors, whose sum is σ = 71061030663654. Its totient is φ = 71061030663652.

The previous prime is 71061030663613. The next prime is 71061030663713. The reversal of 71061030663653 is 35636603016017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66311429371489 + 4749601292164 = 8143183^2 + 2179358^2 .

It is a cyclic number.

It is not a de Polignac number, because 71061030663653 - 2⁸ = 71061030663397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71061030663598 and 71061030663607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71061030663613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35530515331826 + 35530515331827.

It is an arithmetic number, because the mean of its divisors is an integer number (35530515331827).

Almost surely, 2^{71061030663653} is an apocalyptic number.

It is an amenable number.

71061030663653 is a deficient number, since it is larger than the sum of its proper divisors (1).

71061030663653 is an equidigital number, since it uses as much as digits as its factorization.

71061030663653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 47.

The spelling of 71061030663653 in words is "seventy-one trillion, sixty-one billion, thirty million, six hundred sixty-three thousand, six hundred fifty-three".