2011515432 has 64 divisors (see below), whose sum is σ = 5166927360. Its totient is φ = 652185600.

The previous prime is 2011515431. The next prime is 2011515437. The reversal of 2011515432 is 2345151102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2011515431) 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, 344457 + ... + 350247.

It is an arithmetic number, because the mean of its divisors is an integer number (80733240).

Almost surely, 2^2011515432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2011515432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2583463680).

2011515432 is an abundant number, since it is smaller than the sum of its proper divisors (3155411928).

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

2011515432 is a wasteful number, since it uses less digits than its factorization.

2011515432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6194 (or 6190 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2011515432 is about 44849.9212039442. The cubic root of 2011515432 is about 1262.3345129887.

Adding to 2011515432 its reverse (2345151102), we get a palindrome (4356666534).

The spelling of 2011515432 in words is "two billion, eleven million, five hundred fifteen thousand, four hundred thirty-two".