20500150105 has 8 divisors (see below), whose sum is σ = 25064334792. Its totient is φ = 16090683648.

The previous prime is 20500150103. The next prime is 20500150123. The reversal of 20500150105 is 50105100502.

It can be written as a sum of positive squares in 4 ways, for example, as 1282427721 + 19217722384 = 35811^2 + 138628^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20500150105 - 2¹ = 20500150103 is a prime.

It is a super-2 number, since 2×20500150105² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20500150103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38679264 + ... + 38679793.

It is an arithmetic number, because the mean of its divisors is an integer number (3133041849).

Almost surely, 2^20500150105 is an apocalyptic number.

It is an amenable number.

20500150105 is a deficient number, since it is larger than the sum of its proper divisors (4564184687).

20500150105 is an equidigital number, since it uses as much as digits as its factorization.

20500150105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77359115.

The product of its (nonzero) digits is 250, while the sum is 19.

Adding to 20500150105 its reverse (50105100502), we get a palindrome (70605250607).

The spelling of 20500150105 in words is "twenty billion, five hundred million, one hundred fifty thousand, one hundred five".