20627105005 has 16 divisors (see below), whose sum is σ = 26993998080. Its totient is φ = 15039505728.

The previous prime is 20627104987. The next prime is 20627105017. The reversal of 20627105005 is 50050172602.

It is a de Polignac number, because none of the positive numbers 2^k-20627105005 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2003347 + ... + 2013616.

It is an arithmetic number, because the mean of its divisors is an integer number (1687124880).

Almost surely, 2^20627105005 is an apocalyptic number.

It is an amenable number.

20627105005 is a deficient number, since it is larger than the sum of its proper divisors (6366893075).

20627105005 is a wasteful number, since it uses less digits than its factorization.

20627105005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017060.

The product of its (nonzero) digits is 4200, while the sum is 28.

Adding to 20627105005 its reverse (50050172602), we get a palindrome (70677277607).

The spelling of 20627105005 in words is "twenty billion, six hundred twenty-seven million, one hundred five thousand, five".