195838066 has 4 divisors (see below), whose sum is σ = 293757102. Its totient is φ = 97919032.

The previous prime is 195838037. The next prime is 195838081. The reversal of 195838066 is 660838591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 191020041 + 4818025 = 13821^2 + 2195^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48959515 + ... + 48959518.

Almost surely, 2^195838066 is an apocalyptic number.

195838066 is a deficient number, since it is larger than the sum of its proper divisors (97919036).

195838066 is an equidigital number, since it uses as much as digits as its factorization.

195838066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97919035.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 195838066 is about 13994.2154478199. The cubic root of 195838066 is about 580.7185565063.

The spelling of 195838066 in words is "one hundred ninety-five million, eight hundred thirty-eight thousand, sixty-six".