2601660071 has 2 divisors, whose sum is σ = 2601660072. Its totient is φ = 2601660070.

The previous prime is 2601660013. The next prime is 2601660077. The reversal of 2601660071 is 1700661062.

2601660071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2601660071 - 2²⁶ = 2534551207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2601660077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1300830035 + 1300830036.

It is an arithmetic number, because the mean of its divisors is an integer number (1300830036).

Almost surely, 2^2601660071 is an apocalyptic number.

2601660071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2601660071 is an equidigital number, since it uses as much as digits as its factorization.

2601660071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2601660071 is about 51006.4708738019. The cubic root of 2601660071 is about 1375.3614601886.

Subtracting from 2601660071 its reverse (1700661062), we obtain a palindrome (900999009).

The spelling of 2601660071 in words is "two billion, six hundred one million, six hundred sixty thousand, seventy-one".