140020424144 has 20 divisors (see below), whose sum is σ = 283084771296. Its totient is φ = 66966289632.

The previous prime is 140020424111. The next prime is 140020424161. The reversal of 140020424144 is 441424020041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190244774 + ... + 190245509.

Almost surely, 2^140020424144 is an apocalyptic number.

It is an amenable number.

140020424144 is an abundant number, since it is smaller than the sum of its proper divisors (143064347152).

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

140020424144 is a wasteful number, since it uses less digits than its factorization.

140020424144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380490314 (or 380490308 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 140020424144 its reverse (441424020041), we get a palindrome (581444444185).

The spelling of 140020424144 in words is "one hundred forty billion, twenty million, four hundred twenty-four thousand, one hundred forty-four".