1116563420 has 48 divisors (see below), whose sum is σ = 2682408960. Its totient is φ = 382442304.

The previous prime is 1116563407. The next prime is 1116563429. The reversal of 1116563420 is 243656111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116563429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162821 + ... + 169539.

It is an arithmetic number, because the mean of its divisors is an integer number (55883520).

Almost surely, 2^1116563420 is an apocalyptic number.

1116563420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1116563420 is an abundant number, since it is smaller than the sum of its proper divisors (1565845540).

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

1116563420 is a wasteful number, since it uses less digits than its factorization.

1116563420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7922 (or 7920 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1116563420 is about 33415.0178811863. The cubic root of 1116563420 is about 1037.4355641987.

The spelling of 1116563420 in words is "one billion, one hundred sixteen million, five hundred sixty-three thousand, four hundred twenty".