20240136012144 has 80 divisors (see below), whose sum is σ = 52682444357760. Its totient is φ = 6695724760320.

The previous prime is 20240136012137. The next prime is 20240136012193. The reversal of 20240136012144 is 44121063104202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17734579 + ... + 18841325.

It is an arithmetic number, because the mean of its divisors is an integer number (658530554472).

Almost surely, 2^{20240136012144} is an apocalyptic number.

20240136012144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20240136012144 is an abundant number, since it is smaller than the sum of its proper divisors (32442308345616).

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

20240136012144 is a wasteful number, since it uses less digits than its factorization.

20240136012144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109638 (or 1109632 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 20240136012144 its reverse (44121063104202), we get a palindrome (64361199116346).

The spelling of 20240136012144 in words is "twenty trillion, two hundred forty billion, one hundred thirty-six million, twelve thousand, one hundred forty-four".