1166507893 has 2 divisors, whose sum is σ = 1166507894. Its totient is φ = 1166507892.

The previous prime is 1166507791. The next prime is 1166507929. The reversal of 1166507893 is 3987056611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 713584369 + 452923524 = 26713^2 + 21282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166507893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166507393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583253946 + 583253947.

It is an arithmetic number, because the mean of its divisors is an integer number (583253947).

Almost surely, 2^1166507893 is an apocalyptic number.

It is an amenable number.

1166507893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166507893 is an equidigital number, since it uses as much as digits as its factorization.

1166507893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1166507893 is about 34154.1782656237. The cubic root of 1166507893 is about 1052.6788416536.

The spelling of 1166507893 in words is "one billion, one hundred sixty-six million, five hundred seven thousand, eight hundred ninety-three".