5515566567 has 32 divisors (see below), whose sum is σ = 8664768000. Its totient is φ = 3119203584.

The previous prime is 5515566541. The next prime is 5515566569. The reversal of 5515566567 is 7656655155.

It is not a de Polignac number, because 5515566567 - 2¹⁶ = 5515501031 is a prime.

It is a super-3 number, since 3×5515566567³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515566569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72184 + ... + 127442.

It is an arithmetic number, because the mean of its divisors is an integer number (270774000).

Almost surely, 2^5515566567 is an apocalyptic number.

5515566567 is a deficient number, since it is larger than the sum of its proper divisors (3149201433).

5515566567 is an equidigital number, since it uses as much as digits as its factorization.

5515566567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55380 (or 55366 counting only the distinct ones).

The product of its digits is 4725000, while the sum is 51.

The square root of 5515566567 is about 74266.8604897231. The cubic root of 5515566567 is about 1766.8379142927.

The spelling of 5515566567 in words is "five billion, five hundred fifteen million, five hundred sixty-six thousand, five hundred sixty-seven".