2103044166545 has 48 divisors (see below), whose sum is σ = 3110803107840. Its totient is φ = 1356194133504.

The previous prime is 2103044166523. The next prime is 2103044166589. The reversal of 2103044166545 is 5456614403012.

It is not a de Polignac number, because 2103044166545 - 2¹² = 2103044162449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5129642 + ... + 5524428.

It is an arithmetic number, because the mean of its divisors is an integer number (64808398080).

Almost surely, 2^{2103044166545} is an apocalyptic number.

It is an amenable number.

2103044166545 is a deficient number, since it is larger than the sum of its proper divisors (1007758941295).

2103044166545 is a wasteful number, since it uses less digits than its factorization.

2103044166545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396102 (or 396095 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

Adding to 2103044166545 its reverse (5456614403012), we get a palindrome (7559658569557).

The spelling of 2103044166545 in words is "two trillion, one hundred three billion, forty-four million, one hundred sixty-six thousand, five hundred forty-five".