20501341045 has 8 divisors (see below), whose sum is σ = 24729079896. Its totient is φ = 16316092416.

The previous prime is 20501341043. The next prime is 20501341067. The reversal of 20501341045 is 54014310502.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 911979601 + 19589361444 = 30199^2 + 139962^2 .

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 20501341045 - 2¹ = 20501341043 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 (20501341043) 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, 10621492 + ... + 10623421.

It is an arithmetic number, because the mean of its divisors is an integer number (3091134987).

Almost surely, 2^20501341045 is an apocalyptic number.

It is an amenable number.

20501341045 is a deficient number, since it is larger than the sum of its proper divisors (4227738851).

20501341045 is a wasteful number, since it uses less digits than its factorization.

20501341045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21245111.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 20501341045 its reverse (54014310502), we get a palindrome (74515651547).

The spelling of 20501341045 in words is "twenty billion, five hundred one million, three hundred forty-one thousand, forty-five".