198278343033 has 16 divisors (see below), whose sum is σ = 264645553536. Its totient is φ = 132048417920.

The previous prime is 198278343023. The next prime is 198278343059. The reversal of 198278343033 is 330343872891.

It is a cyclic number.

It is not a de Polignac number, because 198278343033 - 2⁵ = 198278343001 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (198278343023) 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, 15664135 + ... + 15676787.

It is an arithmetic number, because the mean of its divisors is an integer number (16540347096).

Almost surely, 2^198278343033 is an apocalyptic number.

It is an amenable number.

198278343033 is a deficient number, since it is larger than the sum of its proper divisors (66367210503).

198278343033 is a wasteful number, since it uses less digits than its factorization.

198278343033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17664.

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 198278343033 in words is "one hundred ninety-eight billion, two hundred seventy-eight million, three hundred forty-three thousand, thirty-three".