2111660343352 has 192 divisors, whose sum is σ = 4809448707840. Its totient is φ = 865686528000.

The previous prime is 2111660343323. The next prime is 2111660343409. The reversal of 2111660343352 is 2533430661112.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 1046930248 + ... + 1046932264.

It is an arithmetic number, because the mean of its divisors is an integer number (25049212020).

Almost surely, 2^{2111660343352} 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 2111660343352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2404724353920).

2111660343352 is an abundant number, since it is smaller than the sum of its proper divisors (2697788364488).

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

2111660343352 is a wasteful number, since it uses less digits than its factorization.

2111660343352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022 (or 3011 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 2111660343352 in words is "two trillion, one hundred eleven billion, six hundred sixty million, three hundred forty-three thousand, three hundred fifty-two".