1660023347 has 2 divisors, whose sum is σ = 1660023348. Its totient is φ = 1660023346.

The previous prime is 1660023319. The next prime is 1660023377. The reversal of 1660023347 is 7433200661.

It is a weak prime.

It is an emirp because it is prime and its reverse (7433200661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1660023347 - 2¹⁴ = 1660006963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1660023377) 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, 830011673 + 830011674.

It is an arithmetic number, because the mean of its divisors is an integer number (830011674).

Almost surely, 2^1660023347 is an apocalyptic number.

1660023347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1660023347 is an equidigital number, since it uses as much as digits as its factorization.

1660023347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 1660023347 is about 40743.3840887082. The cubic root of 1660023347 is about 1184.0536985153.

The spelling of 1660023347 in words is "one billion, six hundred sixty million, twenty-three thousand, three hundred forty-seven".