1660532243 has 2 divisors, whose sum is σ = 1660532244. Its totient is φ = 1660532242.

The previous prime is 1660532149. The next prime is 1660532281. The reversal of 1660532243 is 3422350661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1660532243 - 2¹² = 1660528147 is a prime.

It is a super-2 number, since 2×1660532243² = 5514734660085222098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1660532543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830266121 + 830266122.

It is an arithmetic number, because the mean of its divisors is an integer number (830266122).

Almost surely, 2^1660532243 is an apocalyptic number.

1660532243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1660532243 is an equidigital number, since it uses as much as digits as its factorization.

1660532243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 1660532243 is about 40749.6287467751. The cubic root of 1660532243 is about 1184.1746804740.

The spelling of 1660532243 in words is "one billion, six hundred sixty million, five hundred thirty-two thousand, two hundred forty-three".