2661122384 has 20 divisors (see below), whose sum is σ = 5281680180. Its totient is φ = 1298108160.

The previous prime is 2661122369. The next prime is 2661122393. The reversal of 2661122384 is 4832211662.

It can be written as a sum of positive squares in 2 ways, for example, as 1038643984 + 1622478400 = 32228^2 + 40280^2 .

It is a congruent number.

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, 2027639 + ... + 2028950.

It is an arithmetic number, because the mean of its divisors is an integer number (264084009).

Almost surely, 2^2661122384 is an apocalyptic number.

It is an amenable number.

2661122384 is a deficient number, since it is larger than the sum of its proper divisors (2620557796).

2661122384 is a wasteful number, since it uses less digits than its factorization.

2661122384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056638 (or 4056632 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 2661122384 is about 51586.0677315106. The cubic root of 2661122384 is about 1385.7608341671.

The spelling of 2661122384 in words is "two billion, six hundred sixty-one million, one hundred twenty-two thousand, three hundred eighty-four".