20340332554444 has 24 divisors (see below), whose sum is σ = 40682133530528. Its totient is φ = 8716970718720.

The previous prime is 20340332554433. The next prime is 20340332554453. The reversal of 20340332554444 is 44445523304302.

It is a self number, because there is not a number n which added to its sum of digits gives 20340332554444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12320517 + ... + 13873564.

Almost surely, 2^{20340332554444} is an apocalyptic number.

It is an amenable number.

20340332554444 is an abundant number, since it is smaller than the sum of its proper divisors (20341800976084).

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

20340332554444 is a wasteful number, since it uses less digits than its factorization.

20340332554444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26221825 (or 26221823 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 43.

Adding to 20340332554444 its reverse (44445523304302), we get a palindrome (64785855858746).

The spelling of 20340332554444 in words is "twenty trillion, three hundred forty billion, three hundred thirty-two million, five hundred fifty-four thousand, four hundred forty-four".