20551234006 has 16 divisors (see below), whose sum is σ = 33334670016. Its totient is φ = 9465398656.

The previous prime is 20551234003. The next prime is 20551234061. The reversal of 20551234006 is 60043215502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20551234003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6428701 + ... + 6431896.

It is an arithmetic number, because the mean of its divisors is an integer number (2083416876).

Almost surely, 2^20551234006 is an apocalyptic number.

20551234006 is a deficient number, since it is larger than the sum of its proper divisors (12783436010).

20551234006 is a wasteful number, since it uses less digits than its factorization.

20551234006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12860663.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 20551234006 its reverse (60043215502), we get a palindrome (80594449508).

The spelling of 20551234006 in words is "twenty billion, five hundred fifty-one million, two hundred thirty-four thousand, six".