191012795065 has 8 divisors (see below), whose sum is σ = 229287840768. Its totient is φ = 152761911600.

The previous prime is 191012795041. The next prime is 191012795111. The reversal of 191012795065 is 560597210191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 191012795065 - 2⁵ = 191012795033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6023161 + ... + 6054790.

It is an arithmetic number, because the mean of its divisors is an integer number (28660980096).

Almost surely, 2^191012795065 is an apocalyptic number.

It is an amenable number.

191012795065 is a deficient number, since it is larger than the sum of its proper divisors (38275045703).

191012795065 is a wasteful number, since it uses less digits than its factorization.

191012795065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12081119.

The product of its (nonzero) digits is 170100, while the sum is 46.

The spelling of 191012795065 in words is "one hundred ninety-one billion, twelve million, seven hundred ninety-five thousand, sixty-five".