2116444565312 has 112 divisors (see below), whose sum is σ = 5544147212928. Its totient is φ = 776083537920.

The previous prime is 2116444565297. The next prime is 2116444565317. The reversal of 2116444565312 is 2135654446112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116444565317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12547793 + ... + 12715344.

Almost surely, 2^{2116444565312} is an apocalyptic number.

2116444565312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2116444565312 is an abundant number, since it is smaller than the sum of its proper divisors (3427702647616).

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

2116444565312 is a wasteful number, since it uses less digits than its factorization.

2116444565312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25263184 (or 25263174 counting only the distinct ones).

The product of its digits is 691200, while the sum is 44.

The spelling of 2116444565312 in words is "two trillion, one hundred sixteen billion, four hundred forty-four million, five hundred sixty-five thousand, three hundred twelve".