2011901960 has 64 divisors (see below), whose sum is σ = 4590950400. Its totient is φ = 793408000.

The previous prime is 2011901959. The next prime is 2011901993. The reversal of 2011901960 is 691091102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1747385 + ... + 1748535.

It is an arithmetic number, because the mean of its divisors is an integer number (71733600).

Almost surely, 2^2011901960 is an apocalyptic number.

2011901960 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 2011901960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2295475200).

2011901960 is an abundant number, since it is smaller than the sum of its proper divisors (2579048440).

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

2011901960 is a wasteful number, since it uses less digits than its factorization.

2011901960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742 (or 1738 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 2011901960 is about 44854.2301238133. The cubic root of 2011901960 is about 1262.4153635384.

The spelling of 2011901960 in words is "two billion, eleven million, nine hundred one thousand, nine hundred sixty".