9955840973197 has 8 divisors (see below), whose sum is σ = 11547926417216. Its totient is φ = 8406211141152.

The previous prime is 9955840973129. The next prime is 9955840973201. The reversal of 9955840973197 is 7913790485599.

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

It is a cyclic number.

It is not a de Polignac number, because 9955840973197 - 2³⁵ = 9921481234829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9955840974197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10613902488 + ... + 10613903425.

It is an arithmetic number, because the mean of its divisors is an integer number (1443490802152).

Almost surely, 2^{9955840973197} is an apocalyptic number.

It is an amenable number.

9955840973197 is a deficient number, since it is larger than the sum of its proper divisors (1592085444019).

9955840973197 is a wasteful number, since it uses less digits than its factorization.

9955840973197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21227805987.

The product of its (nonzero) digits is 771573600, while the sum is 76.

The spelling of 9955840973197 in words is "nine trillion, nine hundred fifty-five billion, eight hundred forty million, nine hundred seventy-three thousand, one hundred ninety-seven".