190668699 has 12 divisors (see below), whose sum is σ = 296595936. Its totient is φ = 117334512.

The previous prime is 190668697. The next prime is 190668727. The reversal of 190668699 is 996866091.

It is not a de Polignac number, because 190668699 - 2¹ = 190668697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190668691) 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 11 ways as a sum of consecutive naturals, for example, 814707 + ... + 814940.

It is an arithmetic number, because the mean of its divisors is an integer number (24716328).

Almost surely, 2^190668699 is an apocalyptic number.

190668699 is a deficient number, since it is larger than the sum of its proper divisors (105927237).

190668699 is a wasteful number, since it uses less digits than its factorization.

190668699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629666 (or 1629663 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The square root of 190668699 is about 13808.2837094260. The cubic root of 190668699 is about 575.5633536107.

The spelling of 190668699 in words is "one hundred ninety million, six hundred sixty-eight thousand, six hundred ninety-nine".