5518811672 has 16 divisors (see below), whose sum is σ = 11288478600. Its totient is φ = 2508550720.

The previous prime is 5518811663. The next prime is 5518811707. The reversal of 5518811672 is 2761188155.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31356797 + ... + 31356972.

Almost surely, 2^5518811672 is an apocalyptic number.

It is an amenable number.

5518811672 is an abundant number, since it is smaller than the sum of its proper divisors (5769666928).

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

5518811672 is a wasteful number, since it uses less digits than its factorization.

5518811672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62713786 (or 62713782 counting only the distinct ones).

The product of its digits is 134400, while the sum is 44.

The square root of 5518811672 is about 74288.7048749674. The cubic root of 5518811672 is about 1767.1843550068.

The spelling of 5518811672 in words is "five billion, five hundred eighteen million, eight hundred eleven thousand, six hundred seventy-two".