20624642106 has 16 divisors (see below), whose sum is σ = 41272440384. Its totient is φ = 6871021344.

The previous prime is 20624642081. The next prime is 20624642191. The reversal of 20624642106 is 60124642602.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953251 + ... + 974646.

It is an arithmetic number, because the mean of its divisors is an integer number (2579527524).

Almost surely, 2^20624642106 is an apocalyptic number.

20624642106 is an abundant number, since it is smaller than the sum of its proper divisors (20647798278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20624642106 is a wasteful number, since it uses less digits than its factorization.

20624642106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929685.

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 20624642106 in words is "twenty billion, six hundred twenty-four million, six hundred forty-two thousand, one hundred six".