20450004211443 has 16 divisors (see below), whose sum is σ = 27976983372576. Its totient is φ = 13279258460160.

The previous prime is 20450004211393. The next prime is 20450004211453. The reversal of 20450004211443 is 34411240005402.

It is not a de Polignac number, because 20450004211443 - 2²⁰ = 20450003162867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20450004211443.

It is not an unprimeable number, because it can be changed into a prime (20450004211453) 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, 134656846 + ... + 134808627.

It is an arithmetic number, because the mean of its divisors is an integer number (1748561460786).

Almost surely, 2^{20450004211443} is an apocalyptic number.

20450004211443 is a deficient number, since it is larger than the sum of its proper divisors (7526979161133).

20450004211443 is a wasteful number, since it uses less digits than its factorization.

20450004211443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269466134.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 20450004211443 its reverse (34411240005402), we get a palindrome (54861244216845).

The spelling of 20450004211443 in words is "twenty trillion, four hundred fifty billion, four million, two hundred eleven thousand, four hundred forty-three".