190983991668 has 24 divisors (see below), whose sum is σ = 445736578560. Its totient is φ = 63646007040.

The previous prime is 190983991663. The next prime is 190983991669. The reversal of 190983991668 is 866199389091.

190983991668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190983991663) 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 7 ways as a sum of consecutive naturals, for example, 1863453 + ... + 1963268.

It is an arithmetic number, because the mean of its divisors is an integer number (18572357440).

Almost surely, 2^190983991668 is an apocalyptic number.

It is an amenable number.

190983991668 is an abundant number, since it is smaller than the sum of its proper divisors (254752586892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190983991668 is a wasteful number, since it uses less digits than its factorization.

190983991668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830887 (or 3830885 counting only the distinct ones).

The product of its (nonzero) digits is 45349632, while the sum is 69.

The spelling of 190983991668 in words is "one hundred ninety billion, nine hundred eighty-three million, nine hundred ninety-one thousand, six hundred sixty-eight".