1668380229 has 12 divisors (see below), whose sum is σ = 2450728800. Its totient is φ = 1093401384.

The previous prime is 1668380167. The next prime is 1668380239. The reversal of 1668380229 is 9220838661.

It is not a de Polignac number, because 1668380229 - 2⁹ = 1668379717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668380239) 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, 1570449 + ... + 1571510.

It is an arithmetic number, because the mean of its divisors is an integer number (204227400).

Almost surely, 2^1668380229 is an apocalyptic number.

It is an amenable number.

1668380229 is a deficient number, since it is larger than the sum of its proper divisors (782348571).

1668380229 is a wasteful number, since it uses less digits than its factorization.

1668380229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142024 (or 3142021 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1668380229 is about 40845.8104216332. The cubic root of 1668380229 is about 1186.0372928810.

The spelling of 1668380229 in words is "one billion, six hundred sixty-eight million, three hundred eighty thousand, two hundred twenty-nine".