197366366825 has 12 divisors (see below), whose sum is σ = 250703425308. Its totient is φ = 154042041600.

The previous prime is 197366366807. The next prime is 197366366831. The reversal of 197366366825 is 528663663791.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4107656281 + 193258710544 = 64091^2 + 439612^2 .

It is not a de Polignac number, because 197366366825 - 2³² = 193071399529 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 96275252 + ... + 96277301.

It is an arithmetic number, because the mean of its divisors is an integer number (20891952109).

Almost surely, 2^197366366825 is an apocalyptic number.

It is an amenable number.

197366366825 is a deficient number, since it is larger than the sum of its proper divisors (53337058483).

197366366825 is a wasteful number, since it uses less digits than its factorization.

197366366825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192552604 (or 192552599 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 62.

The spelling of 197366366825 in words is "one hundred ninety-seven billion, three hundred sixty-six million, three hundred sixty-six thousand, eight hundred twenty-five".