6555555516 has 24 divisors (see below), whose sum is σ = 15390143104. Its totient is φ = 2171778480.

The previous prime is 6555555509. The next prime is 6555555547. The reversal of 6555555516 is 6155555556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1673800 + ... + 1677711.

Almost surely, 2^6555555516 is an apocalyptic number.

It is an amenable number.

6555555516 is an abundant number, since it is smaller than the sum of its proper divisors (8834587588).

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

6555555516 is a wasteful number, since it uses less digits than its factorization.

6555555516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351681 (or 3351679 counting only the distinct ones).

The product of its digits is 2812500, while the sum is 48.

The square root of 6555555516 is about 80966.3850990027. The cubic root of 6555555516 is about 1871.5574655696.

The spelling of 6555555516 in words is "six billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred sixteen".