11919516 has 72 divisors (see below), whose sum is σ = 33833856. Its totient is φ = 3198720.

The previous prime is 11919511. The next prime is 11919521. The reversal of 11919516 is 61591911.

11919516 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11919511) and next prime (11919521).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11919511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24031 + ... + 24521.

Almost surely, 2^11919516 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 11919516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16916928).

11919516 is an abundant number, since it is smaller than the sum of its proper divisors (21914340).

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

11919516 is a wasteful number, since it uses less digits than its factorization.

11919516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 520 counting only the distinct ones).

The product of its digits is 2430, while the sum is 33.

The square root of 11919516 is about 3452.4652061969. The cubic root of 11919516 is about 228.4298600293.

The spelling of 11919516 in words is "eleven million, nine hundred nineteen thousand, five hundred sixteen".