2661562126 has 32 divisors (see below), whose sum is σ = 4323392928. Its totient is φ = 1224253440.

The previous prime is 2661562121. The next prime is 2661562129. The reversal of 2661562126 is 6212651662.

2661562126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661562121) 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, 334126 + ... + 341998.

It is an arithmetic number, because the mean of its divisors is an integer number (135106029).

Almost surely, 2^2661562126 is an apocalyptic number.

2661562126 is a deficient number, since it is larger than the sum of its proper divisors (1661830802).

2661562126 is a wasteful number, since it uses less digits than its factorization.

2661562126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8116.

The product of its digits is 51840, while the sum is 37.

The square root of 2661562126 is about 51590.3297721579. The cubic root of 2661562126 is about 1385.8371608180.

The spelling of 2661562126 in words is "two billion, six hundred sixty-one million, five hundred sixty-two thousand, one hundred twenty-six".