198293158856212 has 24 divisors (see below), whose sum is σ = 396588295604480. Its totient is φ = 84982358532960.

The previous prime is 198293158856201. The next prime is 198293158856239. The reversal of 198293158856212 is 212658851392891.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11912412 + ... + 23205427.

Almost surely, 2^{198293158856212} is an apocalyptic number.

It is an amenable number.

198293158856212 is an abundant number, since it is smaller than the sum of its proper divisors (198295136748268).

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

198293158856212 is a wasteful number, since it uses less digits than its factorization.

198293158856212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35319511 (or 35319509 counting only the distinct ones).

The product of its digits is 149299200, while the sum is 70.

The spelling of 198293158856212 in words is "one hundred ninety-eight trillion, two hundred ninety-three billion, one hundred fifty-eight million, eight hundred fifty-six thousand, two hundred twelve".