1663113205 has 16 divisors (see below), whose sum is σ = 2150112384. Its totient is φ = 1227654720.

The previous prime is 1663113197. The next prime is 1663113227. The reversal of 1663113205 is 5023113661.

It is not a de Polignac number, because 1663113205 - 2³ = 1663113197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282502 + ... + 288328.

It is an arithmetic number, because the mean of its divisors is an integer number (134382024).

Almost surely, 2^1663113205 is an apocalyptic number.

It is an amenable number.

1663113205 is a deficient number, since it is larger than the sum of its proper divisors (486999179).

1663113205 is a wasteful number, since it uses less digits than its factorization.

1663113205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10236.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1663113205 is about 40781.2849846593. The cubic root of 1663113205 is about 1184.7878830095.

Adding to 1663113205 its reverse (5023113661), we get a palindrome (6686226866).

The spelling of 1663113205 in words is "one billion, six hundred sixty-three million, one hundred thirteen thousand, two hundred five".