195066918 has 24 divisors (see below), whose sum is σ = 423020208. Its totient is φ = 64964592.

The previous prime is 195066917. The next prime is 195066929. The reversal of 195066918 is 819660591.

It is a super-2 number, since 2×195066918² = 76102204996037448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195066913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19296 + ... + 27612.

It is an arithmetic number, because the mean of its divisors is an integer number (17625842).

Almost surely, 2^195066918 is an apocalyptic number.

195066918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

195066918 is an abundant number, since it is smaller than the sum of its proper divisors (227953290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195066918 is a wasteful number, since it uses less digits than its factorization.

195066918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9628 (or 9625 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 195066918 is about 13966.6358869987. The cubic root of 195066918 is about 579.9553255325.

The spelling of 195066918 in words is "one hundred ninety-five million, sixty-six thousand, nine hundred eighteen".