2311659648 has 160 divisors (see below), whose sum is σ = 6997914000. Its totient is φ = 757292544.

The previous prime is 2311659641. The next prime is 2311659673. The reversal of 2311659648 is 8469561132.

2311659648 is a `hidden beast` number, since 2 + 3 + 1 + 16 + 596 + 48 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2311659641) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 609823 + ... + 613601.

Almost surely, 2^2311659648 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 2311659648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3498957000).

2311659648 is an abundant number, since it is smaller than the sum of its proper divisors (4686254352).

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

2311659648 is an equidigital number, since it uses as much as digits as its factorization.

2311659648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3864 (or 3843 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 2311659648 is about 48079.7217962001. The cubic root of 2311659648 is about 1322.2329148813.

The spelling of 2311659648 in words is "two billion, three hundred eleven million, six hundred fifty-nine thousand, six hundred forty-eight".