20003555436224 has 28 divisors (see below), whose sum is σ = 40103777550984. Its totient is φ = 9898666604544.

The previous prime is 20003555436199. The next prime is 20003555436253. The reversal of 20003555436224 is 42263455530002.

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, 1611104894 + ... + 1611117309.

It is an arithmetic number, because the mean of its divisors is an integer number (1432277769678).

Almost surely, 2^{20003555436224} is an apocalyptic number.

It is an amenable number.

20003555436224 is an abundant number, since it is smaller than the sum of its proper divisors (20100222114760).

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

20003555436224 is an equidigital number, since it uses as much as digits as its factorization.

20003555436224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222222312 (or 3222222302 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 41.

The spelling of 20003555436224 in words is "twenty trillion, three billion, five hundred fifty-five million, four hundred thirty-six thousand, two hundred twenty-four".