6542661126 has 32 divisors (see below), whose sum is σ = 13218559200. Its totient is φ = 2158721280.

The previous prime is 6542661107. The next prime is 6542661133. The reversal of 6542661126 is 6211662456.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 733936 + ... + 742796.

It is an arithmetic number, because the mean of its divisors is an integer number (413079975).

Almost surely, 2^6542661126 is an apocalyptic number.

6542661126 is an abundant number, since it is smaller than the sum of its proper divisors (6675898074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6542661126 is a wasteful number, since it uses less digits than its factorization.

6542661126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10104.

The product of its digits is 103680, while the sum is 39.

The square root of 6542661126 is about 80886.7178589909. The cubic root of 6542661126 is about 1870.3295792075.

The spelling of 6542661126 in words is "six billion, five hundred forty-two million, six hundred sixty-one thousand, one hundred twenty-six".