198604432953 has 16 divisors (see below), whose sum is σ = 294366945600. Its totient is φ = 132340785120.

The previous prime is 198604432933. The next prime is 198604432963. The reversal of 198604432953 is 359234406891.

198604432953 is a `hidden beast` number, since 1 + 9 + 8 + 604 + 4 + 3 + 29 + 5 + 3 = 666.

It is not a de Polignac number, because 198604432953 - 2⁵ = 198604432921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198604432953.

It is not an unprimeable number, because it can be changed into a prime (198604432913) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1668348 + ... + 1783421.

It is an arithmetic number, because the mean of its divisors is an integer number (18397934100).

Almost surely, 2^198604432953 is an apocalyptic number.

It is an amenable number.

198604432953 is a deficient number, since it is larger than the sum of its proper divisors (95762512647).

198604432953 is a wasteful number, since it uses less digits than its factorization.

198604432953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453909 (or 3453903 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 198604432953 in words is "one hundred ninety-eight billion, six hundred four million, four hundred thirty-two thousand, nine hundred fifty-three".