20650101 has 8 divisors (see below), whose sum is σ = 28205184. Its totient is φ = 13430880.

The previous prime is 20650099. The next prime is 20650127. The reversal of 20650101 is 10105602.

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

It is not a de Polignac number, because 20650101 - 2¹ = 20650099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20650141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83821 + ... + 84066.

It is an arithmetic number, because the mean of its divisors is an integer number (3525648).

Almost surely, 2^20650101 is an apocalyptic number.

It is an amenable number.

20650101 is a deficient number, since it is larger than the sum of its proper divisors (7555083).

20650101 is a wasteful number, since it uses less digits than its factorization.

20650101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167931.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 20650101 is about 4544.2382199880. The cubic root of 20650101 is about 274.3515343419.

Adding to 20650101 its reverse (10105602), we get a palindrome (30755703).

The spelling of 20650101 in words is "twenty million, six hundred fifty thousand, one hundred one".