1116418821 has 8 divisors (see below), whose sum is σ = 1701209664. Its totient is φ = 637953600.

The previous prime is 1116418813. The next prime is 1116418843. The reversal of 1116418821 is 1288146111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1116418821 - 2³ = 1116418813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116418921) 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, 26581380 + ... + 26581421.

It is an arithmetic number, because the mean of its divisors is an integer number (212651208).

Almost surely, 2^1116418821 is an apocalyptic number.

It is an amenable number.

1116418821 is a deficient number, since it is larger than the sum of its proper divisors (584790843).

1116418821 is an equidigital number, since it uses as much as digits as its factorization.

1116418821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53162811.

The product of its digits is 3072, while the sum is 33.

The square root of 1116418821 is about 33412.8541283142. The cubic root of 1116418821 is about 1037.3907783798.

The spelling of 1116418821 in words is "one billion, one hundred sixteen million, four hundred eighteen thousand, eight hundred twenty-one".