9955669943958 has 8 divisors (see below), whose sum is σ = 19911339887928. Its totient is φ = 3318556647984.

The previous prime is 9955669943783. The next prime is 9955669943959. The reversal of 9955669943958 is 8593499665599.

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

9955669943958 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9955669943959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829639161991 + ... + 829639162002.

It is an arithmetic number, because the mean of its divisors is an integer number (2488917485991).

Almost surely, 2^{9955669943958} is an apocalyptic number.

9955669943958 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9955669943958 is a wasteful number, since it uses less digits than its factorization.

9955669943958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659278323998.

The product of its digits is 25509168000, while the sum is 87.

The spelling of 9955669943958 in words is "nine trillion, nine hundred fifty-five billion, six hundred sixty-nine million, nine hundred forty-three thousand, nine hundred fifty-eight".