11511960 has 128 divisors (see below), whose sum is σ = 37255680. Its totient is φ = 2838528.

The previous prime is 11511953. The next prime is 11511961. The reversal of 11511960 is 6911511.

11511960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11511960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11511961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118632 + ... + 118728.

It is an arithmetic number, because the mean of its divisors is an integer number (291060).

Almost surely, 2^11511960 is an apocalyptic number.

11511960 is a gapful number since it is divisible by the number (10) 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 11511960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18627840).

11511960 is an abundant number, since it is smaller than the sum of its proper divisors (25743720).

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

11511960 is a wasteful number, since it uses less digits than its factorization.

11511960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 24.

The square root of 11511960 is about 3392.9279391110. The cubic root of 11511960 is about 225.7960935253.

The spelling of 11511960 in words is "eleven million, five hundred eleven thousand, nine hundred sixty".