20034055187 has 4 divisors (see below), whose sum is σ = 20575516176. Its totient is φ = 19492594200.

The previous prime is 20034055157. The next prime is 20034055199. The reversal of 20034055187 is 78155043002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20034055187 - 2³⁰ = 18960313363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20034055117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270730439 + ... + 270730512.

It is an arithmetic number, because the mean of its divisors is an integer number (5143879044).

Almost surely, 2^20034055187 is an apocalyptic number.

20034055187 is a deficient number, since it is larger than the sum of its proper divisors (541460989).

20034055187 is an equidigital number, since it uses as much as digits as its factorization.

20034055187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541460988.

The product of its (nonzero) digits is 33600, while the sum is 35.

Adding to 20034055187 its reverse (78155043002), we get a palindrome (98189098189).

The spelling of 20034055187 in words is "twenty billion, thirty-four million, fifty-five thousand, one hundred eighty-seven".