196213585508 has 24 divisors (see below), whose sum is σ = 343839561912. Its totient is φ = 97973777664.

The previous prime is 196213585457. The next prime is 196213585571. The reversal of 196213585508 is 805585312691.

196213585508 is digitally balanced in base 3, 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 4 ways, for example, as 467510884 + 195746074624 = 21622^2 + 442432^2 .

It is a super-2 number, since 2×196213585508² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 196213585508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17518166 + ... + 17529362.

It is an arithmetic number, because the mean of its divisors is an integer number (14326648413).

Almost surely, 2^196213585508 is an apocalyptic number.

It is an amenable number.

196213585508 is a deficient number, since it is larger than the sum of its proper divisors (147625976404).

196213585508 is a wasteful number, since it uses less digits than its factorization.

196213585508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16751 (or 16749 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 53.

The spelling of 196213585508 in words is "one hundred ninety-six billion, two hundred thirteen million, five hundred eighty-five thousand, five hundred eight".