197742416366 has 24 divisors (see below), whose sum is σ = 326056307472. Its totient is φ = 89875623200.

The previous prime is 197742416359. The next prime is 197742416369. The reversal of 197742416366 is 663614247791.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197742416369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3934391 + ... + 3984333.

It is an arithmetic number, because the mean of its divisors is an integer number (13585679478).

Almost surely, 2^197742416366 is an apocalyptic number.

197742416366 is a deficient number, since it is larger than the sum of its proper divisors (128313891106).

197742416366 is a wasteful number, since it uses less digits than its factorization.

197742416366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66328 (or 66317 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 56.

The spelling of 197742416366 in words is "one hundred ninety-seven billion, seven hundred forty-two million, four hundred sixteen thousand, three hundred sixty-six".