20003450544 has 120 divisors (see below), whose sum is σ = 69795628032. Its totient is φ = 5195698560.

The previous prime is 20003450539. The next prime is 20003450549. The reversal of 20003450544 is 44505430002.

20003450544 is a `hidden beast` number, since 200 + 0 + 3 + 450 + 5 + 4 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (20003450539) and next prime (20003450549).

It is not an unprimeable number, because it can be changed into a prime (20003450549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 890944 + ... + 913119.

Almost surely, 2^20003450544 is an apocalyptic number.

20003450544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20003450544 is an abundant number, since it is smaller than the sum of its proper divisors (49792177488).

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

20003450544 is a wasteful number, since it uses less digits than its factorization.

20003450544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804095 (or 1804086 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 20003450544 its reverse (44505430002), we get a palindrome (64508880546).

The spelling of 20003450544 in words is "twenty billion, three million, four hundred fifty thousand, five hundred forty-four".