11516404440 has 32 divisors (see below), whose sum is σ = 34549213680. Its totient is φ = 3071041152.

The previous prime is 11516404399. The next prime is 11516404453. The reversal of 11516404440 is 4440461511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 11516404398 and 11516404407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47984899 + ... + 47985138.

Almost surely, 2^11516404440 is an apocalyptic number.

11516404440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11516404440 is an abundant number, since it is smaller than the sum of its proper divisors (23032809240).

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

11516404440 is a wasteful number, since it uses less digits than its factorization.

11516404440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95970051 (or 95970047 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 11516404440 its reverse (4440461511), we get a palindrome (15956865951).

The spelling of 11516404440 in words is "eleven billion, five hundred sixteen million, four hundred four thousand, four hundred forty".