199397388022596 has 81 divisors (see below), whose sum is σ = 505378469076663. Its totient is φ = 66288749241600.

The previous prime is 199397388022577. The next prime is 199397388022631. The reversal of 199397388022596 is 695220883793991.

The square root of 199397388022596 is 14120814.

It is a perfect power (a square), and thus also a powerful number.

199397388022596 is a `hidden beast` number, since 1 + 9 + 9 + 3 + 9 + 7 + 388 + 0 + 225 + 9 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9093155816196 + 190304232206400 = 3015486^2 + 13795080^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 33974675550 + ... + 33974681418.

Almost surely, 2^{199397388022596} is an apocalyptic number.

199397388022596 is the 14120814-th square number.

It is an amenable number.

199397388022596 is an abundant number, since it is smaller than the sum of its proper divisors (305981081054067).

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

199397388022596 is an frugal number, since it uses more digits than its factorization.

199397388022596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12550 (or 6275 counting only the distinct ones).

The product of its (nonzero) digits is 3174474240, while the sum is 81.

The spelling of 199397388022596 in words is "one hundred ninety-nine trillion, three hundred ninety-seven billion, three hundred eighty-eight million, twenty-two thousand, five hundred ninety-six".