20500115006 has 36 divisors (see below), whose sum is σ = 37998588528. Its totient is φ = 8268942528.

The previous prime is 20500114991. The next prime is 20500115021. The reversal of 20500115006 is 60051100502.

It is an interprime number because it is at equal distance from previous prime (20500114991) and next prime (20500115021).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 333590 + ... + 390233.

It is an arithmetic number, because the mean of its divisors is an integer number (1055516348).

Almost surely, 2^20500115006 is an apocalyptic number.

20500115006 is a deficient number, since it is larger than the sum of its proper divisors (17498473522).

20500115006 is a wasteful number, since it uses less digits than its factorization.

20500115006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723873 (or 723849 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 20500115006 its reverse (60051100502), we get a palindrome (80551215508).

The spelling of 20500115006 in words is "twenty billion, five hundred million, one hundred fifteen thousand, six".