2183663506 has 4 divisors (see below), whose sum is σ = 3275495262. Its totient is φ = 1091831752.

The previous prime is 2183663491. The next prime is 2183663507. The reversal of 2183663506 is 6053663812.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1380791281 + 802872225 = 37159^2 + 28335^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2183663507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545915875 + ... + 545915878.

Almost surely, 2^2183663506 is an apocalyptic number.

2183663506 is a deficient number, since it is larger than the sum of its proper divisors (1091831756).

2183663506 is a wasteful number, since it uses less digits than its factorization.

2183663506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091831755.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 2183663506 is about 46729.6854900608. The cubic root of 2183663506 is about 1297.3641871847.

The spelling of 2183663506 in words is "two billion, one hundred eighty-three million, six hundred sixty-three thousand, five hundred six".