198053865320 has 16 divisors (see below), whose sum is σ = 445621197060. Its totient is φ = 79221546112.

The previous prime is 198053865301. The next prime is 198053865343. The reversal of 198053865320 is 23568350891.

It can be written as a sum of positive squares in 2 ways, for example, as 195486011044 + 2567854276 = 442138^2 + 50674^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2475673277 + ... + 2475673356.

Almost surely, 2^198053865320 is an apocalyptic number.

198053865320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198053865320 is an abundant number, since it is smaller than the sum of its proper divisors (247567331740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198053865320 is a wasteful number, since it uses less digits than its factorization.

198053865320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4951346644 (or 4951346640 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 198053865320 in words is "one hundred ninety-eight billion, fifty-three million, eight hundred sixty-five thousand, three hundred twenty".