2011041644543 has 16 divisors (see below), whose sum is σ = 2106347771136. Its totient is φ = 1916394258240.

The previous prime is 2011041644509. The next prime is 2011041644587. The reversal of 2011041644543 is 3454461401102.

It is a Cunningham number, because it is equal to 1418112²-1.

It is a cyclic number.

It is not a de Polignac number, because 2011041644543 - 2²² = 2011037450239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011041644743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32585771 + ... + 32647427.

It is an arithmetic number, because the mean of its divisors is an integer number (131646735696).

Almost surely, 2^{2011041644543} is an apocalyptic number.

2011041644543 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2011041644543 is a deficient number, since it is larger than the sum of its proper divisors (95306126593).

2011041644543 is a wasteful number, since it uses less digits than its factorization.

2011041644543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66974.

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 2011041644543 in words is "two trillion, eleven billion, forty-one million, six hundred forty-four thousand, five hundred forty-three".