2071665270497 has 2 divisors, whose sum is σ = 2071665270498. Its totient is φ = 2071665270496.

The previous prime is 2071665270413. The next prime is 2071665270589. The reversal of 2071665270497 is 7940725661702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1956093148816 + 115572121681 = 1398604^2 + 339959^2 .

It is a cyclic number.

It is not a de Polignac number, because 2071665270497 - 2²² = 2071661076193 is a prime.

It is not a weakly prime, because it can be changed into another prime (2071665276497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1035832635248 + 1035832635249.

It is an arithmetic number, because the mean of its divisors is an integer number (1035832635249).

Almost surely, 2^{2071665270497} is an apocalyptic number.

It is an amenable number.

2071665270497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2071665270497 is an equidigital number, since it uses as much as digits as its factorization.

2071665270497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8890560, while the sum is 56.

The spelling of 2071665270497 in words is "two trillion, seventy-one billion, six hundred sixty-five million, two hundred seventy thousand, four hundred ninety-seven".