2661426116 has 24 divisors (see below), whose sum is σ = 4755830520. Its totient is φ = 1302884352.

The previous prime is 2661426113. The next prime is 2661426137. The reversal of 2661426116 is 6116241662.

It can be written as a sum of positive squares in 4 ways, for example, as 970571716 + 1690854400 = 31154^2 + 41120^2 .

It is not an unprimeable number, because it can be changed into a prime (2661426113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6740 + ... + 73268.

It is an arithmetic number, because the mean of its divisors is an integer number (198159605).

Almost surely, 2^2661426116 is an apocalyptic number.

It is an amenable number.

2661426116 is a deficient number, since it is larger than the sum of its proper divisors (2094404404).

2661426116 is a wasteful number, since it uses less digits than its factorization.

2661426116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66743 (or 66741 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 2661426116 is about 51589.0115819251. The cubic root of 2661426116 is about 1385.8135542649.

Adding to 2661426116 its reverse (6116241662), we get a palindrome (8777667778).

The spelling of 2661426116 in words is "two billion, six hundred sixty-one million, four hundred twenty-six thousand, one hundred sixteen".