198588648466 has 32 divisors (see below), whose sum is σ = 328365309888. Its totient is φ = 89495340480.

The previous prime is 198588648463. The next prime is 198588648497. The reversal of 198588648466 is 664846885891.

It is not an unprimeable number, because it can be changed into a prime (198588648463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3573505 + ... + 3628651.

It is an arithmetic number, because the mean of its divisors is an integer number (10261415934).

Almost surely, 2^198588648466 is an apocalyptic number.

198588648466 is a deficient number, since it is larger than the sum of its proper divisors (129776661422).

198588648466 is a wasteful number, since it uses less digits than its factorization.

198588648466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58426.

The product of its digits is 637009920, while the sum is 73.

The spelling of 198588648466 in words is "one hundred ninety-eight billion, five hundred eighty-eight million, six hundred forty-eight thousand, four hundred sixty-six".