2113252660 has 24 divisors (see below), whose sum is σ = 4698880200. Its totient is φ = 795577344.

The previous prime is 2113252657. The next prime is 2113252697. The reversal of 2113252660 is 662523112.

It can be written as a sum of positive squares in 4 ways, for example, as 1201454244 + 911798416 = 34662^2 + 30196^2 .

It is a congruent number.

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, 3107385 + ... + 3108064.

It is an arithmetic number, because the mean of its divisors is an integer number (195786675).

Almost surely, 2^2113252660 is an apocalyptic number.

2113252660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113252660 is an abundant number, since it is smaller than the sum of its proper divisors (2585627540).

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

2113252660 is a wasteful number, since it uses less digits than its factorization.

2113252660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6215475 (or 6215473 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2113252660 is about 45970.1279093282. The cubic root of 2113252660 is about 1283.2673403219.

Adding to 2113252660 its reverse (662523112), we get a palindrome (2775775772).

The spelling of 2113252660 in words is "two billion, one hundred thirteen million, two hundred fifty-two thousand, six hundred sixty".