2044161345 has 32 divisors (see below), whose sum is σ = 3501999360. Its totient is φ = 1014548480.

The previous prime is 2044161307. The next prime is 2044161349. The reversal of 2044161345 is 5431614402.

It is not a de Polignac number, because 2044161345 - 2⁶ = 2044161281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2044161349) 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, 22341 + ... + 67730.

It is an arithmetic number, because the mean of its divisors is an integer number (109437480).

Almost surely, 2^2044161345 is an apocalyptic number.

It is an amenable number.

2044161345 is a deficient number, since it is larger than the sum of its proper divisors (1457838015).

2044161345 is a wasteful number, since it uses less digits than its factorization.

2044161345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90185.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 2044161345 is about 45212.4025572630. The cubic root of 2044161345 is about 1269.1269228182.

Adding to 2044161345 its reverse (5431614402), we get a palindrome (7475775747).

It can be divided in two parts, 204416 and 1345, that added together give a triangular number (205761 = T₆₄₁).

The spelling of 2044161345 in words is "two billion, forty-four million, one hundred sixty-one thousand, three hundred forty-five".