11440531816 has 32 divisors (see below), whose sum is σ = 24610847040. Its totient is φ = 4884000768.

The previous prime is 11440531811. The next prime is 11440531829. The reversal of 11440531816 is 61813504411.

It is not an unprimeable number, because it can be changed into a prime (11440531811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383070 + ... + 411853.

It is an arithmetic number, because the mean of its divisors is an integer number (769088970).

Almost surely, 2^11440531816 is an apocalyptic number.

It is an amenable number.

11440531816 is an abundant number, since it is smaller than the sum of its proper divisors (13170315224).

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

11440531816 is a wasteful number, since it uses less digits than its factorization.

11440531816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795193 (or 795189 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 11440531816 in words is "eleven billion, four hundred forty million, five hundred thirty-one thousand, eight hundred sixteen".