20003555111151 has 16 divisors (see below), whose sum is σ = 27009615144960. Its totient is φ = 13166606687520.

The previous prime is 20003555111131. The next prime is 20003555111207. The reversal of 20003555111151 is 15111155530002.

It is not a de Polignac number, because 20003555111151 - 2⁹ = 20003555110639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003555111131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10115761 + ... + 11930453.

It is an arithmetic number, because the mean of its divisors is an integer number (1688100946560).

Almost surely, 2^{20003555111151} is an apocalyptic number.

20003555111151 is a deficient number, since it is larger than the sum of its proper divisors (7006060033809).

20003555111151 is a wasteful number, since it uses less digits than its factorization.

20003555111151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861286.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 20003555111151 in words is "twenty trillion, three billion, five hundred fifty-five million, one hundred eleven thousand, one hundred fifty-one".