1066612049 has 2 divisors, whose sum is σ = 1066612050. Its totient is φ = 1066612048.

The previous prime is 1066612021. The next prime is 1066612067. The reversal of 1066612049 is 9402166601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1049306449 + 17305600 = 32393^2 + 4160^2 .

It is an emirp because it is prime and its reverse (9402166601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1066612049 - 2¹² = 1066607953 is a prime.

It is a super-2 number, since 2×1066612049² = 2275322526143956802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1066617049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533306024 + 533306025.

It is an arithmetic number, because the mean of its divisors is an integer number (533306025).

Almost surely, 2^1066612049 is an apocalyptic number.

It is an amenable number.

1066612049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066612049 is an equidigital number, since it uses as much as digits as its factorization.

1066612049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 1066612049 is about 32659.0270675659. The cubic root of 1066612049 is about 1021.7284703799.

The spelling of 1066612049 in words is "one billion, sixty-six million, six hundred twelve thousand, forty-nine".