190198194466 has 16 divisors (see below), whose sum is σ = 326075520960. Its totient is φ = 81508143600.

The previous prime is 190198194451. The next prime is 190198194467. The reversal of 190198194466 is 664491891091.

It is a self number, because there is not a number n which added to its sum of digits gives 190198194466.

It is not an unprimeable number, because it can be changed into a prime (190198194467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223321 + ... + 655948.

It is an arithmetic number, because the mean of its divisors is an integer number (20379720060).

Almost surely, 2^190198194466 is an apocalyptic number.

190198194466 is a deficient number, since it is larger than the sum of its proper divisors (135877326494).

190198194466 is a wasteful number, since it uses less digits than its factorization.

190198194466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894729.

The product of its (nonzero) digits is 3359232, while the sum is 58.

The spelling of 190198194466 in words is "one hundred ninety billion, one hundred ninety-eight million, one hundred ninety-four thousand, four hundred sixty-six".