195481685185 has 16 divisors (see below), whose sum is σ = 245168658000. Its totient is φ = 149436112896.

The previous prime is 195481685167. The next prime is 195481685207. The reversal of 195481685185 is 581586184591.

195481685185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 12475024 + 195469210161 = 3532^2 + 442119^2 .

It is a cyclic number.

It is not a de Polignac number, because 195481685185 - 2¹⁷ = 195481554113 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6935160 + ... + 6963289.

It is an arithmetic number, because the mean of its divisors is an integer number (15323041125).

Almost surely, 2^195481685185 is an apocalyptic number.

It is an amenable number.

195481685185 is a deficient number, since it is larger than the sum of its proper divisors (49686972815).

195481685185 is a wasteful number, since it uses less digits than its factorization.

195481685185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13898580.

The product of its digits is 13824000, while the sum is 61.

The spelling of 195481685185 in words is "one hundred ninety-five billion, four hundred eighty-one million, six hundred eighty-five thousand, one hundred eighty-five".