20445332135001 has 4 divisors (see below), whose sum is σ = 27260442846672. Its totient is φ = 13630221423332.

The previous prime is 20445332134991. The next prime is 20445332135021. The reversal of 20445332135001 is 10053123354402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20445332135001 - 2⁶ = 20445332134937 is a prime.

It is a super-2 number, since 2×20445332135001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20445332135021) 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 3 ways as a sum of consecutive naturals, for example, 3407555355831 + ... + 3407555355836.

It is an arithmetic number, because the mean of its divisors is an integer number (6815110711668).

Almost surely, 2^{20445332135001} is an apocalyptic number.

It is an amenable number.

20445332135001 is a deficient number, since it is larger than the sum of its proper divisors (6815110711671).

20445332135001 is an equidigital number, since it uses as much as digits as its factorization.

20445332135001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6815110711670.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 20445332135001 its reverse (10053123354402), we get a palindrome (30498455489403).

The spelling of 20445332135001 in words is "twenty trillion, four hundred forty-five billion, three hundred thirty-two million, one hundred thirty-five thousand, one".