197273928166 has 24 divisors (see below), whose sum is σ = 344293835040. Its totient is φ = 84528540432.

The previous prime is 197273928157. The next prime is 197273928179. The reversal of 197273928166 is 661829372791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 276051 + ... + 686113.

It is an arithmetic number, because the mean of its divisors is an integer number (14345576460).

Almost surely, 2^197273928166 is an apocalyptic number.

197273928166 is a deficient number, since it is larger than the sum of its proper divisors (147019906874).

197273928166 is a wasteful number, since it uses less digits than its factorization.

197273928166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414988 (or 414981 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 61.

The spelling of 197273928166 in words is "one hundred ninety-seven billion, two hundred seventy-three million, nine hundred twenty-eight thousand, one hundred sixty-six".