191465066 has 8 divisors (see below), whose sum is σ = 309289764. Its totient is φ = 88368480.

The previous prime is 191465017. The next prime is 191465093. The reversal of 191465066 is 660564191.

191465066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 173580625 + 17884441 = 13175^2 + 4229^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3681995 + ... + 3682046.

Almost surely, 2^191465066 is an apocalyptic number.

191465066 is a deficient number, since it is larger than the sum of its proper divisors (117824698).

191465066 is a wasteful number, since it uses less digits than its factorization.

191465066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7364056.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 191465066 is about 13837.0902288017. The cubic root of 191465066 is about 576.3635601047.

The spelling of 191465066 in words is "one hundred ninety-one million, four hundred sixty-five thousand, sixty-six".