198365253069 has 8 divisors (see below), whose sum is σ = 264498169312. Its totient is φ = 132237919440.

The previous prime is 198365253067. The next prime is 198365253091. The reversal of 198365253069 is 960352563891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198365253069 - 2¹ = 198365253067 is a prime.

It is a super-2 number, since 2×198365253069² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198365253067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1312027 + ... + 1455384.

It is an arithmetic number, because the mean of its divisors is an integer number (33062271164).

Almost surely, 2^198365253069 is an apocalyptic number.

It is an amenable number.

198365253069 is a deficient number, since it is larger than the sum of its proper divisors (66132916243).

198365253069 is a wasteful number, since it uses less digits than its factorization.

198365253069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791307.

The product of its (nonzero) digits is 10497600, while the sum is 57.

The spelling of 198365253069 in words is "one hundred ninety-eight billion, three hundred sixty-five million, two hundred fifty-three thousand, sixty-nine".