2655561516 has 12 divisors (see below), whose sum is σ = 6196310232. Its totient is φ = 885187168.

The previous prime is 2655561499. The next prime is 2655561541. The reversal of 2655561516 is 6151655562.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110648385 + ... + 110648408.

It is an arithmetic number, because the mean of its divisors is an integer number (516359186).

Almost surely, 2^2655561516 is an apocalyptic number.

It is an amenable number.

2655561516 is an abundant number, since it is smaller than the sum of its proper divisors (3540748716).

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

2655561516 is a wasteful number, since it uses less digits than its factorization.

2655561516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221296800 (or 221296798 counting only the distinct ones).

The product of its digits is 270000, while the sum is 42.

The square root of 2655561516 is about 51532.1406114669. The cubic root of 2655561516 is about 1384.7949000116.

The spelling of 2655561516 in words is "two billion, six hundred fifty-five million, five hundred sixty-one thousand, five hundred sixteen".