2013666266216 has 128 divisors (see below), whose sum is σ = 4390243200000. Its totient is φ = 856220751360.

The previous prime is 2013666266173. The next prime is 2013666266257. The reversal of 2013666266216 is 6126626663102.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 423125645 + ... + 423130403.

It is an arithmetic number, because the mean of its divisors is an integer number (34298775000).

Almost surely, 2^{2013666266216} 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 2013666266216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2195121600000).

2013666266216 is an abundant number, since it is smaller than the sum of its proper divisors (2376576933784).

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

2013666266216 is a wasteful number, since it uses less digits than its factorization.

2013666266216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7927 (or 7923 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 2013666266216 in words is "two trillion, thirteen billion, six hundred sixty-six million, two hundred sixty-six thousand, two hundred sixteen".