2111516330660 has 96 divisors (see below), whose sum is σ = 5142246560640. Its totient is φ = 719778560000.

The previous prime is 2111516330647. The next prime is 2111516330699. The reversal of 2111516330660 is 660336151112.

It is a self number, because there is not a number n which added to its sum of digits gives 2111516330660.

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 31 ways as a sum of consecutive naturals, for example, 185915 + ... + 2063394.

It is an arithmetic number, because the mean of its divisors is an integer number (53565068340).

Almost surely, 2^{2111516330660} is an apocalyptic number.

2111516330660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111516330660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2571123280320).

2111516330660 is an abundant number, since it is smaller than the sum of its proper divisors (3030730229980).

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

2111516330660 is a wasteful number, since it uses less digits than its factorization.

2111516330660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249597 (or 2249595 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 2111516330660 in words is "two trillion, one hundred eleven billion, five hundred sixteen million, three hundred thirty thousand, six hundred sixty".