11516418 has 20 divisors (see below), whose sum is σ = 25805670. Its totient is φ = 3838752.

The previous prime is 11516377. The next prime is 11516419. The reversal of 11516418 is 81461511.

11516418 is a `hidden beast` number, since 1 + 15 + 1 + 641 + 8 = 666.

11516418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11512449 + 3969 = 3393^2 + 63^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11516391 and 11516400.

It is not an unprimeable number, because it can be changed into a prime (11516419) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 35383 + ... + 35706.

Almost surely, 2^11516418 is an apocalyptic number.

11516418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11516418 is an abundant number, since it is smaller than the sum of its proper divisors (14289252).

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

11516418 is an equidigital number, since it uses as much as digits as its factorization.

11516418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71103 (or 71094 counting only the distinct ones).

The product of its digits is 960, while the sum is 27.

The square root of 11516418 is about 3393.5848302348. The cubic root of 11516418 is about 225.8252362336.

Adding to 11516418 its reverse (81461511), we get a palindrome (92977929).

It can be divided in two parts, 1151 and 6418, that added together give a square (7569 = 87²).

The spelling of 11516418 in words is "eleven million, five hundred sixteen thousand, four hundred eighteen".