20330341645452 has 12 divisors (see below), whose sum is σ = 47437463839416. Its totient is φ = 6776780548480.

The previous prime is 20330341645447. The next prime is 20330341645487. The reversal of 20330341645452 is 25454614303302.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847097568549 + ... + 847097568572.

It is an arithmetic number, because the mean of its divisors is an integer number (3953121986618).

Almost surely, 2^{20330341645452} is an apocalyptic number.

It is an amenable number.

20330341645452 is an abundant number, since it is smaller than the sum of its proper divisors (27107122193964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20330341645452 is a wasteful number, since it uses less digits than its factorization.

20330341645452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694195137128 (or 1694195137126 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 42.

Adding to 20330341645452 its reverse (25454614303302), we get a palindrome (45784955948754).

The spelling of 20330341645452 in words is "twenty trillion, three hundred thirty billion, three hundred forty-one million, six hundred forty-five thousand, four hundred fifty-two".