2144202120155 has 32 divisors (see below), whose sum is σ = 2637732860928. Its totient is φ = 1672384896000.

The previous prime is 2144202120149. The next prime is 2144202120271. The reversal of 2144202120155 is 5510212024412.

It is not a de Polignac number, because 2144202120155 - 2¹² = 2144202116059 is a prime.

It is a Duffinian 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, 332379680 + ... + 332386130.

It is an arithmetic number, because the mean of its divisors is an integer number (82429151904).

Almost surely, 2^{2144202120155} is an apocalyptic number.

2144202120155 is a deficient number, since it is larger than the sum of its proper divisors (493530740773).

2144202120155 is a wasteful number, since it uses less digits than its factorization.

2144202120155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9107.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 2144202120155 its reverse (5510212024412), we get a palindrome (7654414144567).

The spelling of 2144202120155 in words is "two trillion, one hundred forty-four billion, two hundred two million, one hundred twenty thousand, one hundred fifty-five".