20540366126 has 16 divisors (see below), whose sum is σ = 35218216800. Its totient is φ = 8801473920.

The previous prime is 20540366113. The next prime is 20540366129. The reversal of 20540366126 is 62166304502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20540366129) 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, 43535 + ... + 207306.

It is an arithmetic number, because the mean of its divisors is an integer number (2201138550).

Almost surely, 2^20540366126 is an apocalyptic number.

20540366126 is a deficient number, since it is larger than the sum of its proper divisors (14677850674).

20540366126 is a wasteful number, since it uses less digits than its factorization.

20540366126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256699.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 20540366126 in words is "twenty billion, five hundred forty million, three hundred sixty-six thousand, one hundred twenty-six".