2144145531540 has 96 divisors (see below), whose sum is σ = 6012261884160. Its totient is φ = 570948438016.

The previous prime is 2144145531499. The next prime is 2144145531587. The reversal of 2144145531540 is 451355414412.

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, 171566572 + ... + 171579068.

It is an arithmetic number, because the mean of its divisors is an integer number (62627727960).

Almost surely, 2^{2144145531540} is an apocalyptic number.

2144145531540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144145531540 is an abundant number, since it is smaller than the sum of its proper divisors (3868116352620).

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

2144145531540 is a wasteful number, since it uses less digits than its factorization.

2144145531540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16401 (or 16399 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 39.

The spelling of 2144145531540 in words is "two trillion, one hundred forty-four billion, one hundred forty-five million, five hundred thirty-one thousand, five hundred forty".