2143551545445 has 16 divisors (see below), whose sum is σ = 3435117800832. Its totient is φ = 1141415714880.

The previous prime is 2143551545419. The next prime is 2143551545489. The reversal of 2143551545445 is 5445451553412.

It is not a de Polignac number, because 2143551545445 - 2⁸ = 2143551545189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2143551545394 and 2143551545403.

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 15 ways as a sum of consecutive naturals, for example, 113226222 + ... + 113245151.

It is an arithmetic number, because the mean of its divisors is an integer number (214694862552).

Almost surely, 2^{2143551545445} is an apocalyptic number.

It is an amenable number.

2143551545445 is a deficient number, since it is larger than the sum of its proper divisors (1291566255387).

2143551545445 is a wasteful number, since it uses less digits than its factorization.

2143551545445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226472012.

The product of its digits is 4800000, while the sum is 48.

The spelling of 2143551545445 in words is "two trillion, one hundred forty-three billion, five hundred fifty-one million, five hundred forty-five thousand, four hundred forty-five".