2011485580 has 48 divisors (see below), whose sum is σ = 4574291904. Its totient is φ = 738581760.

The previous prime is 2011485571. The next prime is 2011485583. The reversal of 2011485580 is 855841102.

It is not an unprimeable number, because it can be changed into a prime (2011485583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25689 + ... + 68431.

It is an arithmetic number, because the mean of its divisors is an integer number (95297748).

Almost surely, 2^2011485580 is an apocalyptic number.

2011485580 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 2011485580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2287145952).

2011485580 is an abundant number, since it is smaller than the sum of its proper divisors (2562806324).

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

2011485580 is a wasteful number, since it uses less digits than its factorization.

2011485580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42946 (or 42944 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 2011485580 is about 44849.5884039085. The cubic root of 2011485580 is about 1262.3282683774.

The spelling of 2011485580 in words is "two billion, eleven million, four hundred eighty-five thousand, five hundred eighty".