190665361423 has 2 divisors, whose sum is σ = 190665361424. Its totient is φ = 190665361422.

The previous prime is 190665361351. The next prime is 190665361427. The reversal of 190665361423 is 324163566091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 190665361423 - 2⁹ = 190665360911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190665361427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95332680711 + 95332680712.

It is an arithmetic number, because the mean of its divisors is an integer number (95332680712).

Almost surely, 2^190665361423 is an apocalyptic number.

190665361423 is a deficient number, since it is larger than the sum of its proper divisors (1).

190665361423 is an equidigital number, since it uses as much as digits as its factorization.

190665361423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 190665361423 in words is "one hundred ninety billion, six hundred sixty-five million, three hundred sixty-one thousand, four hundred twenty-three".