20003455344 has 40 divisors (see below), whose sum is σ = 52551457920. Its totient is φ = 6554803648.

The previous prime is 20003455337. The next prime is 20003455361. The reversal of 20003455344 is 44355430002.

It is a congruent number.

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, 3528852 + ... + 3534515.

It is an arithmetic number, because the mean of its divisors is an integer number (1313786448).

Almost surely, 2^20003455344 is an apocalyptic number.

20003455344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20003455344 is an abundant number, since it is smaller than the sum of its proper divisors (32548002576).

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

20003455344 is a wasteful number, since it uses less digits than its factorization.

20003455344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7063437 (or 7063431 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 20003455344 its reverse (44355430002), we get a palindrome (64358885346).

The spelling of 20003455344 in words is "twenty billion, three million, four hundred fifty-five thousand, three hundred forty-four".