2115541180 has 24 divisors (see below), whose sum is σ = 4447367568. Its totient is φ = 845315328.

The previous prime is 2115541151. The next prime is 2115541199. The reversal of 2115541180 is 811455112.

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, 36909 + ... + 74788.

It is an arithmetic number, because the mean of its divisors is an integer number (185306982).

Almost surely, 2^2115541180 is an apocalyptic number.

2115541180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2115541180 is an abundant number, since it is smaller than the sum of its proper divisors (2331826388).

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

2115541180 is a wasteful number, since it uses less digits than its factorization.

2115541180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112653 (or 112651 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 28.

The square root of 2115541180 is about 45995.0125557109. The cubic root of 2115541180 is about 1283.7304058685.

Adding to 2115541180 its reverse (811455112), we get a palindrome (2926996292).

The spelling of 2115541180 in words is "two billion, one hundred fifteen million, five hundred forty-one thousand, one hundred eighty".