195339966 has 16 divisors (see below), whose sum is σ = 407666304. Its totient is φ = 62282264.

The previous prime is 195339961. The next prime is 195339971. The reversal of 195339966 is 669933591.

It is an interprime number because it is at equal distance from previous prime (195339961) and next prime (195339971).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195339961) 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, 707616 + ... + 707891.

It is an arithmetic number, because the mean of its divisors is an integer number (25479144).

Almost surely, 2^195339966 is an apocalyptic number.

195339966 is an abundant number, since it is smaller than the sum of its proper divisors (212326338).

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

195339966 is a wasteful number, since it uses less digits than its factorization.

195339966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415535.

The product of its digits is 1180980, while the sum is 51.

The square root of 195339966 is about 13976.4074783186. The cubic root of 195339966 is about 580.2257999143.

The spelling of 195339966 in words is "one hundred ninety-five million, three hundred thirty-nine thousand, nine hundred sixty-six".