2146144365140 has 24 divisors (see below), whose sum is σ = 4521394829952. Its totient is φ = 855697429280.

The previous prime is 2146144365097. The next prime is 2146144365163. The reversal of 2146144365140 is 415634416412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172513424 + ... + 172525863.

It is an arithmetic number, because the mean of its divisors is an integer number (188391451248).

Almost surely, 2^{2146144365140} is an apocalyptic number.

2146144365140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2146144365140 is an abundant number, since it is smaller than the sum of its proper divisors (2375250464812).

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

2146144365140 is a wasteful number, since it uses less digits than its factorization.

2146144365140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345039607 (or 345039605 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

It can be divided in two parts, 214614 and 4365140, that added together give a palindrome (4579754).

The spelling of 2146144365140 in words is "two trillion, one hundred forty-six billion, one hundred forty-four million, three hundred sixty-five thousand, one hundred forty".