20540523037 has 16 divisors (see below), whose sum is σ = 22702654080. Its totient is φ = 18484989952.

The previous prime is 20540522957. The next prime is 20540523041. The reversal of 20540523037 is 73032504502.

It is a cyclic number.

It is not a de Polignac number, because 20540523037 - 2²³ = 20532134429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20540523137) 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, 1291389 + ... + 1307197.

It is an arithmetic number, because the mean of its divisors is an integer number (1418915880).

Almost surely, 2^20540523037 is an apocalyptic number.

It is an amenable number.

20540523037 is a deficient number, since it is larger than the sum of its proper divisors (2162131043).

20540523037 is a wasteful number, since it uses less digits than its factorization.

20540523037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19172.

The product of its (nonzero) digits is 25200, while the sum is 31.

The spelling of 20540523037 in words is "twenty billion, five hundred forty million, five hundred twenty-three thousand, thirty-seven".