1166486348977 has 2 divisors, whose sum is σ = 1166486348978. Its totient is φ = 1166486348976.

The previous prime is 1166486348971. The next prime is 1166486349043. The reversal of 1166486348977 is 7798436846611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 866619493776 + 299866855201 = 930924^2 + 547601^2 .

It is a cyclic number.

It is not a de Polignac number, because 1166486348977 - 2¹⁵ = 1166486316209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1166486348971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583243174488 + 583243174489.

It is an arithmetic number, because the mean of its divisors is an integer number (583243174489).

Almost surely, 2^{1166486348977} is an apocalyptic number.

It is an amenable number.

1166486348977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166486348977 is an equidigital number, since it uses as much as digits as its factorization.

1166486348977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 292626432, while the sum is 70.

The spelling of 1166486348977 in words is "one trillion, one hundred sixty-six billion, four hundred eighty-six million, three hundred forty-eight thousand, nine hundred seventy-seven".