20330341645453 has 16 divisors (see below), whose sum is σ = 23677800218496. Its totient is φ = 17093795584320.

The previous prime is 20330341645447. The next prime is 20330341645487. The reversal of 20330341645453 is 35454614303302.

It is not a de Polignac number, because 20330341645453 - 2⁹ = 20330341644941 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 (20330341645253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3620478 + ... + 7332703.

It is an arithmetic number, because the mean of its divisors is an integer number (1479862513656).

Almost surely, 2^{20330341645453} is an apocalyptic number.

It is an amenable number.

20330341645453 is a deficient number, since it is larger than the sum of its proper divisors (3347458573043).

20330341645453 is a wasteful number, since it uses less digits than its factorization.

20330341645453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10958244.

The product of its (nonzero) digits is 1555200, while the sum is 43.

Adding to 20330341645453 its reverse (35454614303302), we get a palindrome (55784955948755).

The spelling of 20330341645453 in words is "twenty trillion, three hundred thirty billion, three hundred forty-one million, six hundred forty-five thousand, four hundred fifty-three".