1668350368 has 24 divisors (see below), whose sum is σ = 3290902020. Its totient is φ = 832565760.

The previous prime is 1668350363. The next prime is 1668350441. The reversal of 1668350368 is 8630538661.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1657141264 + 11209104 = 40708^2 + 3348^2 .

It is a super-3 number, since 3×1668350368³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1668350363) 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, 33363 + ... + 66706.

Almost surely, 2^1668350368 is an apocalyptic number.

It is an amenable number.

1668350368 is a deficient number, since it is larger than the sum of its proper divisors (1622551652).

1668350368 is a wasteful number, since it uses less digits than its factorization.

1668350368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100600 (or 100592 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 1668350368 is about 40845.4448867925. Note that the first 3 decimals coincide. The cubic root of 1668350368 is about 1186.0302168619.

The spelling of 1668350368 in words is "one billion, six hundred sixty-eight million, three hundred fifty thousand, three hundred sixty-eight".