1668441675 has 12 divisors (see below), whose sum is σ = 2758490360. Its totient is φ = 889835520.

The previous prime is 1668441653. The next prime is 1668441679. The reversal of 1668441675 is 5761448661.

It is a happy number.

It is not a de Polignac number, because 1668441675 - 2⁹ = 1668441163 is a prime.

It is a super-3 number, since 3×1668441675³ (a number of 29 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1668441679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11122870 + ... + 11123019.

Almost surely, 2^1668441675 is an apocalyptic number.

1668441675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1668441675 is a deficient number, since it is larger than the sum of its proper divisors (1090048685).

1668441675 is a wasteful number, since it uses less digits than its factorization.

1668441675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22245902 (or 22245897 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 1668441675 is about 40846.5625848737. The cubic root of 1668441675 is about 1186.0518531816.

The spelling of 1668441675 in words is "one billion, six hundred sixty-eight million, four hundred forty-one thousand, six hundred seventy-five".