195220666 has 8 divisors (see below), whose sum is σ = 293499360. Its totient is φ = 97387548.

The previous prime is 195220661. The next prime is 195220693. The reversal of 195220666 is 666022591.

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

It is a super-2 number, since 2×195220666² = 76222216866967112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (195220661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110296 + ... + 112051.

It is an arithmetic number, because the mean of its divisors is an integer number (36687420).

Almost surely, 2^195220666 is an apocalyptic number.

195220666 is a deficient number, since it is larger than the sum of its proper divisors (98278694).

195220666 is a wasteful number, since it uses less digits than its factorization.

195220666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222788.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 195220666 is about 13972.1389200079. The cubic root of 195220666 is about 580.1076554030.

The spelling of 195220666 in words is "one hundred ninety-five million, two hundred twenty thousand, six hundred sixty-six".