191630065343 has 4 divisors (see below), whose sum is σ = 194490215640. Its totient is φ = 188769915048.

The previous prime is 191630065273. The next prime is 191630065357. The reversal of 191630065343 is 343560036191.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 191630065343 - 2²⁰ = 191629016767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 191630065343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191630035343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1430075048 + ... + 1430075181.

It is an arithmetic number, because the mean of its divisors is an integer number (48622553910).

Almost surely, 2^191630065343 is an apocalyptic number.

191630065343 is a deficient number, since it is larger than the sum of its proper divisors (2860150297).

191630065343 is an equidigital number, since it uses as much as digits as its factorization.

191630065343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860150296.

The product of its (nonzero) digits is 174960, while the sum is 41.

The spelling of 191630065343 in words is "one hundred ninety-one billion, six hundred thirty million, sixty-five thousand, three hundred forty-three".