198116553 has 16 divisors (see below), whose sum is σ = 278358080. Its totient is φ = 124991424.

The previous prime is 198116539. The next prime is 198116563. The reversal of 198116553 is 355611891.

198116553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 198116553 - 2¹² = 198112457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (198116563) 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, 95475 + ... + 97527.

It is an arithmetic number, because the mean of its divisors is an integer number (17397380).

Almost surely, 2^198116553 is an apocalyptic number.

It is an amenable number.

198116553 is a deficient number, since it is larger than the sum of its proper divisors (80241527).

198116553 is a wasteful number, since it uses less digits than its factorization.

198116553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768.

The product of its digits is 32400, while the sum is 39.

The square root of 198116553 is about 14075.3882006856. The cubic root of 198116553 is about 582.9620106132.

The spelling of 198116553 in words is "one hundred ninety-eight million, one hundred sixteen thousand, five hundred fifty-three".