20142233155 has 32 divisors (see below), whose sum is σ = 27071117568. Its totient is φ = 14262518400.

The previous prime is 20142233149. The next prime is 20142233159. The reversal of 20142233155 is 55133224102.

It is not a de Polignac number, because 20142233155 - 2¹¹ = 20142231107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20142233159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355492 + ... + 408238.

It is an arithmetic number, because the mean of its divisors is an integer number (845972424).

Almost surely, 2^20142233155 is an apocalyptic number.

20142233155 is a deficient number, since it is larger than the sum of its proper divisors (6928884413).

20142233155 is a wasteful number, since it uses less digits than its factorization.

20142233155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52947.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 20142233155 its reverse (55133224102), we get a palindrome (75275457257).

The spelling of 20142233155 in words is "twenty billion, one hundred forty-two million, two hundred thirty-three thousand, one hundred fifty-five".