2111316640 has 48 divisors (see below), whose sum is σ = 5011705440. Its totient is φ = 840510720.

The previous prime is 2111316637. The next prime is 2111316653. The reversal of 2111316640 is 466131112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2491 + ... + 65029.

It is an arithmetic number, because the mean of its divisors is an integer number (104410530).

Almost surely, 2^2111316640 is an apocalyptic number.

2111316640 is a gapful number since it is divisible by the number (20) 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 2111316640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2505852720).

2111316640 is an abundant number, since it is smaller than the sum of its proper divisors (2900388800).

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

2111316640 is a wasteful number, since it uses less digits than its factorization.

2111316640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62765 (or 62757 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2111316640 is about 45949.0657141144. The cubic root of 2111316640 is about 1282.8753395042.

Adding to 2111316640 its reverse (466131112), we get a palindrome (2577447752).

The spelling of 2111316640 in words is "two billion, one hundred eleven million, three hundred sixteen thousand, six hundred forty".