5518428663 has 32 divisors (see below), whose sum is σ = 8394969600. Its totient is φ = 3191767040.

The previous prime is 5518428659. The next prime is 5518428679. The reversal of 5518428663 is 3668248155.

It is a happy number.

It is not a de Polignac number, because 5518428663 - 2² = 5518428659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5518428683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 332695 + ... + 348887.

It is an arithmetic number, because the mean of its divisors is an integer number (262342800).

Almost surely, 2^5518428663 is an apocalyptic number.

5518428663 is a deficient number, since it is larger than the sum of its proper divisors (2876540937).

5518428663 is a wasteful number, since it uses less digits than its factorization.

5518428663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16679.

The product of its digits is 1382400, while the sum is 48.

The square root of 5518428663 is about 74286.1269888261. The cubic root of 5518428663 is about 1767.1434728260.

The spelling of 5518428663 in words is "five billion, five hundred eighteen million, four hundred twenty-eight thousand, six hundred sixty-three".