20535451446001 has 2 divisors, whose sum is σ = 20535451446002. Its totient is φ = 20535451446000.

The previous prime is 20535451445987. The next prime is 20535451446007. The reversal of 20535451446001 is 10064415453502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20344150181601 + 191301264400 = 4510449^2 + 437380^2 .

It is a cyclic number.

It is not a de Polignac number, because 20535451446001 - 2⁹ = 20535451445489 is a prime.

It is not a weakly prime, because it can be changed into another prime (20535451446007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10267725723000 + 10267725723001.

It is an arithmetic number, because the mean of its divisors is an integer number (10267725723001).

Almost surely, 2^{20535451446001} is an apocalyptic number.

It is an amenable number.

20535451446001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20535451446001 is an equidigital number, since it uses as much as digits as its factorization.

20535451446001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 20535451446001 its reverse (10064415453502), we get a palindrome (30599866899503).

The spelling of 20535451446001 in words is "twenty trillion, five hundred thirty-five billion, four hundred fifty-one million, four hundred forty-six thousand, one".