2166927733 has 2 divisors, whose sum is σ = 2166927734. Its totient is φ = 2166927732.

The previous prime is 2166927691. The next prime is 2166927761. The reversal of 2166927733 is 3377296612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1599440049 + 567487684 = 39993^2 + 23822^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2166927733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2166027733) 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, 1083463866 + 1083463867.

It is an arithmetic number, because the mean of its divisors is an integer number (1083463867).

Almost surely, 2^2166927733 is an apocalyptic number.

It is an amenable number.

2166927733 is a deficient number, since it is larger than the sum of its proper divisors (1).

2166927733 is an equidigital number, since it uses as much as digits as its factorization.

2166927733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 46.

The square root of 2166927733 is about 46550.2710303603. The cubic root of 2166927733 is about 1294.0413158766.

The spelling of 2166927733 in words is "two billion, one hundred sixty-six million, nine hundred twenty-seven thousand, seven hundred thirty-three".