195019423966 has 8 divisors (see below), whose sum is σ = 292537020024. Its totient is φ = 97507083960.

The previous prime is 195019423927. The next prime is 195019423981. The reversal of 195019423966 is 669324910591.

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

It is a congruent 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, 1219905 + ... + 1370476.

It is an arithmetic number, because the mean of its divisors is an integer number (36567127503).

Almost surely, 2^195019423966 is an apocalyptic number.

195019423966 is a deficient number, since it is larger than the sum of its proper divisors (97517596058).

195019423966 is a wasteful number, since it uses less digits than its factorization.

195019423966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628026.

The product of its (nonzero) digits is 3149280, while the sum is 55.

The spelling of 195019423966 in words is "one hundred ninety-five billion, nineteen million, four hundred twenty-three thousand, nine hundred sixty-six".