1955833998216 has 64 divisors (see below), whose sum is σ = 5831057894400. Its totient is φ = 534513638208.

The previous prime is 1955833998203. The next prime is 1955833998301. The reversal of 1955833998216 is 6128993385591.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253080246 + ... + 253087973.

It is an arithmetic number, because the mean of its divisors is an integer number (91110279600).

Almost surely, 2^{1955833998216} is an apocalyptic number.

It is an amenable number.

1955833998216 is an abundant number, since it is smaller than the sum of its proper divisors (3875223896184).

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

1955833998216 is a wasteful number, since it uses less digits than its factorization.

1955833998216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506168258 (or 506168254 counting only the distinct ones).

The product of its digits is 125971200, while the sum is 69.

The spelling of 1955833998216 in words is "one trillion, nine hundred fifty-five billion, eight hundred thirty-three million, nine hundred ninety-eight thousand, two hundred sixteen".