20647450201141 has 8 divisors (see below), whose sum is σ = 21053867895000. Its totient is φ = 20241656328192.

The previous prime is 20647450201117. The next prime is 20647450201219. The reversal of 20647450201141 is 14110205474602.

It can be written as a sum of positive squares in 4 ways, for example, as 7392906620100 + 13254543581041 = 2718990^2 + 3640679^2 .

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 20647450201141 - 2¹⁹ = 20647449676853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20647450201141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20647450208141) 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, 155888380 + ... + 156020773.

It is an arithmetic number, because the mean of its divisors is an integer number (2631733486875).

Almost surely, 2^{20647450201141} is an apocalyptic number.

It is an amenable number.

20647450201141 is a deficient number, since it is larger than the sum of its proper divisors (406417693859).

20647450201141 is a wasteful number, since it uses less digits than its factorization.

20647450201141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311910455.

The product of its (nonzero) digits is 53760, while the sum is 37.

Adding to 20647450201141 its reverse (14110205474602), we get a palindrome (34757655675743).

The spelling of 20647450201141 in words is "twenty trillion, six hundred forty-seven billion, four hundred fifty million, two hundred one thousand, one hundred forty-one".