191607007105 has 4 divisors (see below), whose sum is σ = 229928408532. Its totient is φ = 153285605680.

The previous prime is 191607006931. The next prime is 191607007139. The reversal of 191607007105 is 501700706191.

191607007105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 70118510401 + 121488496704 = 264799^2 + 348552^2 .

It is not a de Polignac number, because 191607007105 - 2³⁷ = 54168053633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 19160700706 + ... + 19160700715.

It is an arithmetic number, because the mean of its divisors is an integer number (57482102133).

Almost surely, 2^191607007105 is an apocalyptic number.

It is an amenable number.

191607007105 is a deficient number, since it is larger than the sum of its proper divisors (38321401427).

191607007105 is an equidigital number, since it uses as much as digits as its factorization.

191607007105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38321401426.

The product of its (nonzero) digits is 13230, while the sum is 37.

The spelling of 191607007105 in words is "one hundred ninety-one billion, six hundred seven million, seven thousand, one hundred five".