198943370956 has 12 divisors (see below), whose sum is σ = 379800981000. Its totient is φ = 90428804960.

The previous prime is 198943370909. The next prime is 198943371013. The reversal of 198943370956 is 659073349891.

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, 2260720081 + ... + 2260720168.

It is an arithmetic number, because the mean of its divisors is an integer number (31650081750).

Almost surely, 2^198943370956 is an apocalyptic number.

It is an amenable number.

198943370956 is a deficient number, since it is larger than the sum of its proper divisors (180857610044).

198943370956 is a wasteful number, since it uses less digits than its factorization.

198943370956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4521440264 (or 4521440262 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 64.

The spelling of 198943370956 in words is "one hundred ninety-eight billion, nine hundred forty-three million, three hundred seventy thousand, nine hundred fifty-six".