1660746233 has 2 divisors, whose sum is σ = 1660746234. Its totient is φ = 1660746232.

The previous prime is 1660746203. The next prime is 1660746259. The reversal of 1660746233 is 3326470661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1487876329 + 172869904 = 38573^2 + 13148^2 .

It is a cyclic number.

It is not a de Polignac number, because 1660746233 - 2²⁰ = 1659697657 is a prime.

It is not a weakly prime, because it can be changed into another prime (1660746203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830373116 + 830373117.

It is an arithmetic number, because the mean of its divisors is an integer number (830373117).

Almost surely, 2^1660746233 is an apocalyptic number.

It is an amenable number.

1660746233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1660746233 is an equidigital number, since it uses as much as digits as its factorization.

1660746233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 1660746233 is about 40752.2543302821. The cubic root of 1660746233 is about 1184.2255458228.

The spelling of 1660746233 in words is "one billion, six hundred sixty million, seven hundred forty-six thousand, two hundred thirty-three".