195954771366 has 12 divisors (see below), whose sum is σ = 424568671332. Its totient is φ = 65318257116.

The previous prime is 195954771329. The next prime is 195954771371. The reversal of 195954771366 is 663177459591.

It is a happy number.

195954771366 is a `hidden beast` number, since 1 + 9 + 5 + 95 + 477 + 13 + 66 = 666.

It is a super-2 number, since 2×195954771366² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5443188076 + ... + 5443188111.

It is an arithmetic number, because the mean of its divisors is an integer number (35380722611).

Almost surely, 2^195954771366 is an apocalyptic number.

195954771366 is an abundant number, since it is smaller than the sum of its proper divisors (228613899966).

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

195954771366 is a wasteful number, since it uses less digits than its factorization.

195954771366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10886376195 (or 10886376192 counting only the distinct ones).

The product of its digits is 42865200, while the sum is 63.

The spelling of 195954771366 in words is "one hundred ninety-five billion, nine hundred fifty-four million, seven hundred seventy-one thousand, three hundred sixty-six".