20544110451 has 12 divisors (see below), whose sum is σ = 30306206112. Its totient is φ = 13404667536.

The previous prime is 20544110437. The next prime is 20544110459. The reversal of 20544110451 is 15401144502.

20544110451 is a `hidden beast` number, since 2 + 0 + 544 + 110 + 4 + 5 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-20544110451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20544110459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24283396 + ... + 24284241.

It is an arithmetic number, because the mean of its divisors is an integer number (2525517176).

Almost surely, 2^20544110451 is an apocalyptic number.

20544110451 is a deficient number, since it is larger than the sum of its proper divisors (9762095661).

20544110451 is a wasteful number, since it uses less digits than its factorization.

20544110451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48567690 (or 48567687 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 20544110451 its reverse (15401144502), we get a palindrome (35945254953).

The spelling of 20544110451 in words is "twenty billion, five hundred forty-four million, one hundred ten thousand, four hundred fifty-one".