2611661055 has 16 divisors (see below), whose sum is σ = 4398587520. Its totient is φ = 1319575968.

The previous prime is 2611661053. The next prime is 2611661071. The reversal of 2611661055 is 5501661162.

It is not a de Polignac number, because 2611661055 - 2¹ = 2611661053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2611661053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4581577 + ... + 4582146.

It is an arithmetic number, because the mean of its divisors is an integer number (274911720).

Almost surely, 2^2611661055 is an apocalyptic number.

2611661055 is a deficient number, since it is larger than the sum of its proper divisors (1786926465).

2611661055 is a wasteful number, since it uses less digits than its factorization.

2611661055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9163750.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 2611661055 is about 51104.4132634355. The cubic root of 2611661055 is about 1377.1215390191.

The spelling of 2611661055 in words is "two billion, six hundred eleven million, six hundred sixty-one thousand, fifty-five".