1166790006257 has 2 divisors, whose sum is σ = 1166790006258. Its totient is φ = 1166790006256.

The previous prime is 1166790006229. The next prime is 1166790006311. The reversal of 1166790006257 is 7526000976611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 790541487376 + 376248518881 = 889124^2 + 613391^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166790006257 is a prime.

It is a super-2 number, since 2×1166790006257² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1166790006457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583395003128 + 583395003129.

It is an arithmetic number, because the mean of its divisors is an integer number (583395003129).

Almost surely, 2^{1166790006257} is an apocalyptic number.

It is an amenable number.

1166790006257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166790006257 is an equidigital number, since it uses as much as digits as its factorization.

1166790006257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 50.

The spelling of 1166790006257 in words is "one trillion, one hundred sixty-six billion, seven hundred ninety million, six thousand, two hundred fifty-seven".