2116286390772 has 96 divisors (see below), whose sum is σ = 5547653462400. Its totient is φ = 697627385856.

The previous prime is 2116286390759. The next prime is 2116286390783. The reversal of 2116286390772 is 2770936826112.

It is a happy number.

2116286390772 is a `hidden beast` number, since 2 + 1 + 1 + 628 + 6 + 3 + 9 + 0 + 7 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3583818 + ... + 4132350.

It is an arithmetic number, because the mean of its divisors is an integer number (57788056900).

Almost surely, 2^{2116286390772} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2116286390772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2773826731200).

2116286390772 is an abundant number, since it is smaller than the sum of its proper divisors (3431367071628).

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

2116286390772 is a wasteful number, since it uses less digits than its factorization.

2116286390772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548942 (or 548934 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 2116286390772 in words is "two trillion, one hundred sixteen billion, two hundred eighty-six million, three hundred ninety thousand, seven hundred seventy-two".