166898193 has 32 divisors (see below), whose sum is σ = 279674880. Its totient is φ = 86002560.

The previous prime is 166898153. The next prime is 166898201. The reversal of 166898193 is 391898661.

It is not a de Polignac number, because 166898193 - 2¹⁰ = 166897169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166898153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26493 + ... + 32181.

It is an arithmetic number, because the mean of its divisors is an integer number (8739840).

Almost surely, 2^166898193 is an apocalyptic number.

It is an amenable number.

166898193 is a deficient number, since it is larger than the sum of its proper divisors (112776687).

166898193 is a wasteful number, since it uses less digits than its factorization.

166898193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5837.

The product of its digits is 559872, while the sum is 51.

The square root of 166898193 is about 12918.9083517146. The cubic root of 166898193 is about 550.5759179444.

The spelling of 166898193 in words is "one hundred sixty-six million, eight hundred ninety-eight thousand, one hundred ninety-three".