20454544424 has 16 divisors (see below), whose sum is σ = 38747656500. Its totient is φ = 10121836032.

The previous prime is 20454544367. The next prime is 20454544433. The reversal of 20454544424 is 42444545402.

It can be written as a sum of positive squares in 2 ways, for example, as 19427341924 + 1027202500 = 139382^2 + 32050^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13178699 + ... + 13180250.

Almost surely, 2^20454544424 is an apocalyptic number.

It is an amenable number.

20454544424 is a deficient number, since it is larger than the sum of its proper divisors (18293112076).

20454544424 is a wasteful number, since it uses less digits than its factorization.

20454544424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26359052 (or 26359048 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 38.

The spelling of 20454544424 in words is "twenty billion, four hundred fifty-four million, five hundred forty-four thousand, four hundred twenty-four".