11241820816 has 20 divisors (see below), whose sum is σ = 21785659324. Its totient is φ = 5619715200.

The previous prime is 11241820789. The next prime is 11241820817. The reversal of 11241820816 is 61802814211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10692387216 + 549433600 = 103404^2 + 23440^2 .

It is not an unprimeable number, because it can be changed into a prime (11241820817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5506 + ... + 150046.

Almost surely, 2^11241820816 is an apocalyptic number.

11241820816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11241820816 is a deficient number, since it is larger than the sum of its proper divisors (10543838508).

11241820816 is a wasteful number, since it uses less digits than its factorization.

11241820816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149410 (or 149404 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 34.

The spelling of 11241820816 in words is "eleven billion, two hundred forty-one million, eight hundred twenty thousand, eight hundred sixteen".