20003555720030 has 16 divisors (see below), whose sum is σ = 36018398484144. Its totient is φ = 7998756024000.

The previous prime is 20003555719991. The next prime is 20003555720069. The reversal of 20003555720030 is 3002755530002.

It is an interprime number because it is at equal distance from previous prime (20003555719991) and next prime (20003555720069).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333251492 + ... + 333311511.

It is an arithmetic number, because the mean of its divisors is an integer number (2251149905259).

Almost surely, 2^{20003555720030} is an apocalyptic number.

20003555720030 is a deficient number, since it is larger than the sum of its proper divisors (16014842764114).

20003555720030 is a wasteful number, since it uses less digits than its factorization.

20003555720030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666566011.

The product of its (nonzero) digits is 31500, while the sum is 32.

The spelling of 20003555720030 in words is "twenty trillion, three billion, five hundred fifty-five million, seven hundred twenty thousand, thirty".