20330341645397 has 4 divisors (see below), whose sum is σ = 23234676166176. Its totient is φ = 17426007124620.

The previous prime is 20330341645381. The next prime is 20330341645447. The reversal of 20330341645397 is 79354614303302.

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 20330341645397 - 2⁴ = 20330341645381 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 (20330341645337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1452167260379 + ... + 1452167260392.

It is an arithmetic number, because the mean of its divisors is an integer number (5808669041544).

Almost surely, 2^{20330341645397} is an apocalyptic number.

It is an amenable number.

20330341645397 is a deficient number, since it is larger than the sum of its proper divisors (2904334520779).

20330341645397 is an equidigital number, since it uses as much as digits as its factorization.

20330341645397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904334520778.

The product of its (nonzero) digits is 4898880, while the sum is 50.

Adding to 20330341645397 its reverse (79354614303302), we get a palindrome (99684955948699).

The spelling of 20330341645397 in words is "twenty trillion, three hundred thirty billion, three hundred forty-one million, six hundred forty-five thousand, three hundred ninety-seven".