20164522106 has 4 divisors (see below), whose sum is σ = 30246783162. Its totient is φ = 10082261052.

The previous prime is 20164522057. The next prime is 20164522109. The reversal of 20164522106 is 60122546102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60122546102 = 2 ⋅30061273051.

It can be written as a sum of positive squares in only one way, i.e., 18929632225 + 1234889881 = 137585^2 + 35141^2 .

It is not an unprimeable number, because it can be changed into a prime (20164522109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5041130525 + ... + 5041130528.

Almost surely, 2^20164522106 is an apocalyptic number.

20164522106 is a deficient number, since it is larger than the sum of its proper divisors (10082261056).

20164522106 is a wasteful number, since it uses less digits than its factorization.

20164522106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10082261055.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 20164522106 in words is "twenty billion, one hundred sixty-four million, five hundred twenty-two thousand, one hundred six".