9955840973198 has 8 divisors (see below), whose sum is σ = 14933775197208. Its totient is φ = 4977915907464.

The previous prime is 9955840973129. The next prime is 9955840973201. The reversal of 9955840973198 is 8913790485599.

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

It is a congruent number.

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, 2149340 + ... + 4952912.

It is an arithmetic number, because the mean of its divisors is an integer number (1866721899651).

Almost surely, 2^{9955840973198} is an apocalyptic number.

9955840973198 is a deficient number, since it is larger than the sum of its proper divisors (4977934224010).

9955840973198 is a wasteful number, since it uses less digits than its factorization.

9955840973198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579138.

The product of its (nonzero) digits is 881798400, while the sum is 77.

The spelling of 9955840973198 in words is "nine trillion, nine hundred fifty-five billion, eight hundred forty million, nine hundred seventy-three thousand, one hundred ninety-eight".