2166104126 has 16 divisors (see below), whose sum is σ = 3299788800. Its totient is φ = 1066305240.

The previous prime is 2166104093. The next prime is 2166104131. The reversal of 2166104126 is 6214016612.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725 + ... + 65823.

It is an arithmetic number, because the mean of its divisors is an integer number (206236800).

Almost surely, 2^2166104126 is an apocalyptic number.

2166104126 is a deficient number, since it is larger than the sum of its proper divisors (1133684674).

2166104126 is a wasteful number, since it uses less digits than its factorization.

2166104126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65359.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2166104126 is about 46541.4237642125. The cubic root of 2166104126 is about 1293.8773484730.

The spelling of 2166104126 in words is "two billion, one hundred sixty-six million, one hundred four thousand, one hundred twenty-six".