198239567145 has 32 divisors (see below), whose sum is σ = 334067162112. Its totient is φ = 100185742272.

The previous prime is 198239567137. The next prime is 198239567159. The reversal of 198239567145 is 541765932891.

It is a happy number.

It is not a de Polignac number, because 198239567145 - 2³ = 198239567137 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2648167 + ... + 2721996.

It is an arithmetic number, because the mean of its divisors is an integer number (10439598816).

Almost surely, 2^198239567145 is an apocalyptic number.

198239567145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

198239567145 is a deficient number, since it is larger than the sum of its proper divisors (135827594967).

198239567145 is a wasteful number, since it uses less digits than its factorization.

198239567145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5370301.

The product of its digits is 16329600, while the sum is 60.

The spelling of 198239567145 in words is "one hundred ninety-eight billion, two hundred thirty-nine million, five hundred sixty-seven thousand, one hundred forty-five".