20650144361 has 8 divisors (see below), whose sum is σ = 25745634624. Its totient is φ = 16091021520.

The previous prime is 20650144301. The next prime is 20650144363. The reversal of 20650144361 is 16344105602.

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

It is not a de Polignac number, because 20650144361 - 2³⁰ = 19576402537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20650144363) 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 in 7 ways as a sum of consecutive naturals, for example, 134091770 + ... + 134091923.

It is an arithmetic number, because the mean of its divisors is an integer number (3218204328).

Almost surely, 2^20650144361 is an apocalyptic number.

It is an amenable number.

20650144361 is a deficient number, since it is larger than the sum of its proper divisors (5095490263).

20650144361 is a wasteful number, since it uses less digits than its factorization.

20650144361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268183711.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 20650144361 its reverse (16344105602), we get a palindrome (36994249963).

The spelling of 20650144361 in words is "twenty billion, six hundred fifty million, one hundred forty-four thousand, three hundred sixty-one".