20055144120 has 128 divisors (see below), whose sum is σ = 69495978240. Its totient is φ = 4575856640.

The previous prime is 20055144079. The next prime is 20055144133. The reversal of 20055144120 is 2144155002.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 424422 + ... + 469301.

It is an arithmetic number, because the mean of its divisors is an integer number (542937330).

Almost surely, 2^20055144120 is an apocalyptic number.

20055144120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20055144120 is an abundant number, since it is smaller than the sum of its proper divisors (49440834120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20055144120 is a wasteful number, since it uses less digits than its factorization.

20055144120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893765 (or 893761 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 20055144120 its reverse (2144155002), we get a palindrome (22199299122).

The spelling of 20055144120 in words is "twenty billion, fifty-five million, one hundred forty-four thousand, one hundred twenty".