2144542111455 has 32 divisors (see below), whose sum is σ = 3614752800000. Its totient is φ = 1082690399232.

The previous prime is 2144542111427. The next prime is 2144542111457. The reversal of 2144542111455 is 5541112454412.

It is not a de Polignac number, because 2144542111455 - 2⁸ = 2144542111199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144542111457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2656329 + ... + 3368258.

It is an arithmetic number, because the mean of its divisors is an integer number (112961025000).

Almost surely, 2^{2144542111455} is an apocalyptic number.

2144542111455 is a deficient number, since it is larger than the sum of its proper divisors (1470210688545).

2144542111455 is a wasteful number, since it uses less digits than its factorization.

2144542111455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6025863.

The product of its digits is 128000, while the sum is 39.

Adding to 2144542111455 its reverse (5541112454412), we get a palindrome (7685654565867).

The spelling of 2144542111455 in words is "two trillion, one hundred forty-four billion, five hundred forty-two million, one hundred eleven thousand, four hundred fifty-five".