1116205506 has 24 divisors (see below), whose sum is σ = 2604480060. Its totient is φ = 343447776.

The previous prime is 1116205477. The next prime is 1116205507. The reversal of 1116205506 is 6055026111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 993195225 + 123010281 = 31515^2 + 11091^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1116205506.

It is not an unprimeable number, because it can be changed into a prime (1116205507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2384821 + ... + 2385288.

Almost surely, 2^1116205506 is an apocalyptic number.

1116205506 is an abundant number, since it is smaller than the sum of its proper divisors (1488274554).

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

1116205506 is a wasteful number, since it uses less digits than its factorization.

1116205506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4770130 (or 4770127 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1116205506 is about 33409.6618659932. The cubic root of 1116205506 is about 1037.3247024875.

The spelling of 1116205506 in words is "one billion, one hundred sixteen million, two hundred five thousand, five hundred six".