2011012011606 has 16 divisors (see below), whose sum is σ = 4331410486704. Its totient is φ = 618772926624.

The previous prime is 2011012011599. The next prime is 2011012011611. The reversal of 2011012011606 is 6061102101102.

It is a super-2 number, since 2×2011012011606² (a number of 25 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 12891102561 + ... + 12891102716.

It is an arithmetic number, because the mean of its divisors is an integer number (270713155419).

Almost surely, 2^{2011012011606} is an apocalyptic number.

2011012011606 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2011012011606 is an abundant number, since it is smaller than the sum of its proper divisors (2320398475098).

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

2011012011606 is a wasteful number, since it uses less digits than its factorization.

2011012011606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25782205295.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 2011012011606 its reverse (6061102101102), we get a palindrome (8072114112708).

The spelling of 2011012011606 in words is "two trillion, eleven billion, twelve million, eleven thousand, six hundred six".