20045331541 has 8 divisors (see below), whose sum is σ = 20781545400. Its totient is φ = 19312117440.

The previous prime is 20045331503. The next prime is 20045331563. The reversal of 20045331541 is 14513354002.

It can be written as a sum of positive squares in 4 ways, for example, as 1425364516 + 18619967025 = 37754^2 + 136455^2 .

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 20045331541 - 2¹³ = 20045323349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045337541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736326 + ... + 763063.

It is an arithmetic number, because the mean of its divisors is an integer number (2597693175).

Almost surely, 2^20045331541 is an apocalyptic number.

It is an amenable number.

20045331541 is a deficient number, since it is larger than the sum of its proper divisors (736213859).

20045331541 is a wasteful number, since it uses less digits than its factorization.

20045331541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499879.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 20045331541 its reverse (14513354002), we get a palindrome (34558685543).

The spelling of 20045331541 in words is "twenty billion, forty-five million, three hundred thirty-one thousand, five hundred forty-one".