668133099 has 48 divisors (see below), whose sum is σ = 1044126720. Its totient is φ = 410192640.

The previous prime is 668133077. The next prime is 668133101. The reversal of 668133099 is 990331866.

It is not a de Polignac number, because 668133099 - 2¹⁶ = 668067563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (668133019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2018364 + ... + 2018694.

It is an arithmetic number, because the mean of its divisors is an integer number (21752640).

Almost surely, 2^668133099 is an apocalyptic number.

668133099 is a deficient number, since it is larger than the sum of its proper divisors (375993621).

668133099 is a wasteful number, since it uses less digits than its factorization.

668133099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 668133099 is about 25848.2707158525. The cubic root of 668133099 is about 874.2205189869.

The spelling of 668133099 in words is "six hundred sixty-eight million, one hundred thirty-three thousand, ninety-nine".