671265250057951 has 2 divisors, whose sum is σ = 671265250057952. Its totient is φ = 671265250057950.

The previous prime is 671265250057877. The next prime is 671265250057957. The reversal of 671265250057951 is 159750052562176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671265250057951 - 2⁷ = 671265250057823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 671265250057951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671265250057957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335632625028975 + 335632625028976.

It is an arithmetic number, because the mean of its divisors is an integer number (335632625028976).

Almost surely, 2^{671265250057951} is an apocalyptic number.

671265250057951 is a deficient number, since it is larger than the sum of its proper divisors (1).

671265250057951 is an equidigital number, since it uses as much as digits as its factorization.

671265250057951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39690000, while the sum is 61.

The spelling of 671265250057951 in words is "six hundred seventy-one trillion, two hundred sixty-five billion, two hundred fifty million, fifty-seven thousand, nine hundred fifty-one".