20020141555 has 4 divisors (see below), whose sum is σ = 24024169872. Its totient is φ = 16016113240.

The previous prime is 20020141553. The next prime is 20020141567. The reversal of 20020141555 is 55514102002.

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

It is not a de Polignac number, because 20020141555 - 2¹ = 20020141553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020141553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2002014151 + ... + 2002014160.

It is an arithmetic number, because the mean of its divisors is an integer number (6006042468).

Almost surely, 2^20020141555 is an apocalyptic number.

20020141555 is a deficient number, since it is larger than the sum of its proper divisors (4004028317).

20020141555 is an equidigital number, since it uses as much as digits as its factorization.

20020141555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004028316.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 20020141555 its reverse (55514102002), we get a palindrome (75534243557).

The spelling of 20020141555 in words is "twenty billion, twenty million, one hundred forty-one thousand, five hundred fifty-five".