5516556155 has 16 divisors (see below), whose sum is σ = 7223244768. Its totient is φ = 4011168000.

The previous prime is 5516556139. The next prime is 5516556173.

5516556155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5516556155 - 2⁴ = 5516556139 is a prime.

It is a super-2 number, since 2×5516556155² = 60864783622536768050, which contains 22 as substring.

It is a Duffinian 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, 354335 + ... + 369575.

It is an arithmetic number, because the mean of its divisors is an integer number (451452798).

Almost surely, 2^5516556155 is an apocalyptic number.

5516556155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5516556155 is a deficient number, since it is larger than the sum of its proper divisors (1706688613).

5516556155 is a wasteful number, since it uses less digits than its factorization.

5516556155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21838.

The product of its digits is 562500, while the sum is 44.

The square root of 5516556155 is about 74273.5225702942. The cubic root of 5516556155 is about 1766.9435750634.

The spelling of 5516556155 in words is "five billion, five hundred sixteen million, five hundred fifty-six thousand, one hundred fifty-five".