2011542562256 has 80 divisors (see below), whose sum is σ = 4102220607744. Its totient is φ = 953694922752.

The previous prime is 2011542562223. The next prime is 2011542562291. The reversal of 2011542562256 is 6522652451102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24976805 + ... + 25057211.

Almost surely, 2^{2011542562256} 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 2011542562256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2051110303872).

2011542562256 is an abundant number, since it is smaller than the sum of its proper divisors (2090678045488).

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

2011542562256 is a wasteful number, since it uses less digits than its factorization.

2011542562256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81028 (or 81022 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 2011542562256 in words is "two trillion, eleven billion, five hundred forty-two million, five hundred sixty-two thousand, two hundred fifty-six".