20002045445 has 24 divisors (see below), whose sum is σ = 25387824384. Its totient is φ = 15120986048.

The previous prime is 20002045411. The next prime is 20002045477. The reversal of 20002045445 is 54454020002.

It is not a de Polignac number, because 20002045445 - 2³⁰ = 18928303621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147032 + ... + 248238.

It is an arithmetic number, because the mean of its divisors is an integer number (1057826016).

Almost surely, 2^20002045445 is an apocalyptic number.

It is an amenable number.

20002045445 is a deficient number, since it is larger than the sum of its proper divisors (5385778939).

20002045445 is a wasteful number, since it uses less digits than its factorization.

20002045445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101317 (or 101288 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

Adding to 20002045445 its reverse (54454020002), we get a palindrome (74456065447).

The spelling of 20002045445 in words is "twenty billion, two million, forty-five thousand, four hundred forty-five".