20124055144 has 32 divisors (see below), whose sum is σ = 39616351200. Its totient is φ = 9570052800.

The previous prime is 20124055141. The next prime is 20124055151. The reversal of 20124055144 is 44155042102.

It is not an unprimeable number, because it can be changed into a prime (20124055141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631782 + ... + 662869.

It is an arithmetic number, because the mean of its divisors is an integer number (1238010975).

Almost surely, 2^20124055144 is an apocalyptic number.

It is an amenable number.

20124055144 is a deficient number, since it is larger than the sum of its proper divisors (19492296056).

20124055144 is a wasteful number, since it uses less digits than its factorization.

20124055144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294753 (or 1294749 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 20124055144 its reverse (44155042102), we get a palindrome (64279097246).

The spelling of 20124055144 in words is "twenty billion, one hundred twenty-four million, fifty-five thousand, one hundred forty-four".