7166329649 has 2 divisors, whose sum is σ = 7166329650. Its totient is φ = 7166329648.

The previous prime is 7166329637. The next prime is 7166329669. The reversal of 7166329649 is 9469236617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6712852624 + 453477025 = 81932^2 + 21295^2 .

It is a cyclic number.

It is not a de Polignac number, because 7166329649 - 2¹⁶ = 7166264113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7166329649.

It is not a weakly prime, because it can be changed into another prime (7166329669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3583164824 + 3583164825.

It is an arithmetic number, because the mean of its divisors is an integer number (3583164825).

Almost surely, 2^7166329649 is an apocalyptic number.

It is an amenable number.

7166329649 is a deficient number, since it is larger than the sum of its proper divisors (1).

7166329649 is an equidigital number, since it uses as much as digits as its factorization.

7166329649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328, while the sum is 53.

The square root of 7166329649 is about 84654.1767959502. The cubic root of 7166329649 is about 1927.9640309723.

The spelling of 7166329649 in words is "seven billion, one hundred sixty-six million, three hundred twenty-nine thousand, six hundred forty-nine".