191065206964 has 24 divisors (see below), whose sum is σ = 335753734176. Its totient is φ = 95135700000.

The previous prime is 191065206881. The next prime is 191065206967. The reversal of 191065206964 is 469602560191.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191065206967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7638999 + ... + 7663969.

It is an arithmetic number, because the mean of its divisors is an integer number (13989738924).

Almost surely, 2^191065206964 is an apocalyptic number.

It is an amenable number.

191065206964 is a deficient number, since it is larger than the sum of its proper divisors (144688527212).

191065206964 is a wasteful number, since it uses less digits than its factorization.

191065206964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32847 (or 32845 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 191065206964 in words is "one hundred ninety-one billion, sixty-five million, two hundred six thousand, nine hundred sixty-four".