191036066 has 16 divisors (see below), whose sum is σ = 308934528. Its totient is φ = 88074000.

The previous prime is 191036063. The next prime is 191036077. The reversal of 191036066 is 660630191.

It is not an unprimeable number, because it can be changed into a prime (191036063) 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, 23831 + ... + 30821.

It is an arithmetic number, because the mean of its divisors is an integer number (19308408).

Almost surely, 2^191036066 is an apocalyptic number.

191036066 is a deficient number, since it is larger than the sum of its proper divisors (117898462).

191036066 is a wasteful number, since it uses less digits than its factorization.

191036066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8057.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 191036066 is about 13821.5797215803. The cubic root of 191036066 is about 575.9327680820.

The spelling of 191036066 in words is "one hundred ninety-one million, thirty-six thousand, sixty-six".