1146765661 has 2 divisors, whose sum is σ = 1146765662. Its totient is φ = 1146765660.

The previous prime is 1146765649. The next prime is 1146765673. The reversal of 1146765661 is 1665676411.

It is a balanced prime because it is at equal distance from previous prime (1146765649) and next prime (1146765673).

It can be written as a sum of positive squares in only one way, i.e., 847683225 + 299082436 = 29115^2 + 17294^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146765661 - 2¹¹ = 1146763613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1146765461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573382830 + 573382831.

It is an arithmetic number, because the mean of its divisors is an integer number (573382831).

Almost surely, 2^1146765661 is an apocalyptic number.

It is an amenable number.

1146765661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146765661 is an equidigital number, since it uses as much as digits as its factorization.

1146765661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 1146765661 is about 33863.9286114296. The cubic root of 1146765661 is about 1046.7064329061.

The spelling of 1146765661 in words is "one billion, one hundred forty-six million, seven hundred sixty-five thousand, six hundred sixty-one".