140155440121440 has 192 divisors, whose sum is σ = 490618679382720. Its totient is φ = 37369097256960.

The previous prime is 140155440121391. The next prime is 140155440121469. The reversal of 140155440121440 is 44121044551041.

140155440121440 is a `hidden beast` number, since 1 + 4 + 0 + 1 + 5 + 54 + 40 + 121 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 140155440121395 and 140155440121404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25964992 + ... + 30894848.

It is an arithmetic number, because the mean of its divisors is an integer number (2555305621785).

Almost surely, 2^{140155440121440} is an apocalyptic number.

140155440121440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140155440121440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245309339691360).

140155440121440 is an abundant number, since it is smaller than the sum of its proper divisors (350463239261280).

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

140155440121440 is a wasteful number, since it uses less digits than its factorization.

140155440121440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4936462 (or 4936448 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

Adding to 140155440121440 its reverse (44121044551041), we get a palindrome (184276484672481).

The spelling of 140155440121440 in words is "one hundred forty trillion, one hundred fifty-five billion, four hundred forty million, one hundred twenty-one thousand, four hundred forty".