2311651056 has 160 divisors (see below), whose sum is σ = 7045049088. Its totient is φ = 643921920.

The previous prime is 2311651049. The next prime is 2311651099. The reversal of 2311651056 is 6501561132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2106700 + ... + 2107796.

Almost surely, 2^2311651056 is an apocalyptic number.

2311651056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2311651056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3522524544).

2311651056 is an abundant number, since it is smaller than the sum of its proper divisors (4733398032).

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

2311651056 is a wasteful number, since it uses less digits than its factorization.

2311651056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439 (or 1433 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 2311651056 is about 48079.6324445185. The cubic root of 2311651056 is about 1322.2312767164.

It can be divided in two parts, 231165 and 1056, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 2311651056 in words is "two billion, three hundred eleven million, six hundred fifty-one thousand, fifty-six".