2011256046 has 24 divisors (see below), whose sum is σ = 4361076720. Its totient is φ = 669902496.

The previous prime is 2011256029. The next prime is 2011256047. The reversal of 2011256046 is 6406521102.

2011256046 is a `hidden beast` number, since 20 + 11 + 25 + 604 + 6 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011256047) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 18615 + ... + 66098.

It is an arithmetic number, because the mean of its divisors is an integer number (181711530).

Almost surely, 2^2011256046 is an apocalyptic number.

2011256046 is an abundant number, since it is smaller than the sum of its proper divisors (2349820674).

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

2011256046 is a wasteful number, since it uses less digits than its factorization.

2011256046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86040 (or 86037 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2011256046 is about 44847.0293999502. The cubic root of 2011256046 is about 1262.2802510842.

Adding to 2011256046 its reverse (6406521102), we get a palindrome (8417777148).

The spelling of 2011256046 in words is "two billion, eleven million, two hundred fifty-six thousand, forty-six".