1668350337 has 4 divisors (see below), whose sum is σ = 2224467120. Its totient is φ = 1112233556.

The previous prime is 1668350323. The next prime is 1668350339. The reversal of 1668350337 is 7330538661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1668350337 - 2⁶ = 1668350273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1668350339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278058387 + ... + 278058392.

It is an arithmetic number, because the mean of its divisors is an integer number (556116780).

Almost surely, 2^1668350337 is an apocalyptic number.

It is an amenable number.

1668350337 is a deficient number, since it is larger than the sum of its proper divisors (556116783).

1668350337 is an equidigital number, since it uses as much as digits as its factorization.

1668350337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556116782.

The product of its (nonzero) digits is 272160, while the sum is 42.

The square root of 1668350337 is about 40845.4445073132. Note that the first 3 decimals coincide. The cubic root of 1668350337 is about 1186.0302095159.

Adding to 1668350337 its reverse (7330538661), we get a palindrome (8998888998).

The spelling of 1668350337 in words is "one billion, six hundred sixty-eight million, three hundred fifty thousand, three hundred thirty-seven".