2661142055 has 16 divisors (see below), whose sum is σ = 3751653024. Its totient is φ = 1786500480.

The previous prime is 2661142037. The next prime is 2661142079. The reversal of 2661142055 is 5502411662.

It is not a de Polignac number, because 2661142055 - 2¹⁸ = 2660879911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1860224 + ... + 1861653.

It is an arithmetic number, because the mean of its divisors is an integer number (234478314).

Almost surely, 2^2661142055 is an apocalyptic number.

2661142055 is a deficient number, since it is larger than the sum of its proper divisors (1090510969).

2661142055 is a wasteful number, since it uses less digits than its factorization.

2661142055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3721906.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2661142055 is about 51586.2583931031. The cubic root of 2661142055 is about 1385.7642486705.

The spelling of 2661142055 in words is "two billion, six hundred sixty-one million, one hundred forty-two thousand, fifty-five".