2113544620656 has 240 divisors, whose sum is σ = 6790652703744. Its totient is φ = 601136764416.

The previous prime is 2113544620619. The next prime is 2113544620667. The reversal of 2113544620656 is 6560264453112.

2113544620656 is a `hidden beast` number, since 2 + 1 + 1 + 354 + 46 + 206 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 217147566 + ... + 217157298.

Almost surely, 2^{2113544620656} 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 2113544620656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3395326351872).

2113544620656 is an abundant number, since it is smaller than the sum of its proper divisors (4677108083088).

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

2113544620656 is a wasteful number, since it uses less digits than its factorization.

2113544620656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10708 (or 10699 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 2113544620656 in words is "two trillion, one hundred thirteen billion, five hundred forty-four million, six hundred twenty thousand, six hundred fifty-six".