20002045401 has 24 divisors (see below), whose sum is σ = 32117985536. Its totient is φ = 11911885920.

The previous prime is 20002045367. The next prime is 20002045403. The reversal of 20002045401 is 10454020002.

20002045401 is a `hidden beast` number, since 200 + 0 + 20 + 45 + 401 = 666.

It is not a de Polignac number, because 20002045401 - 2⁹ = 20002044889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20002045403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2753755 + ... + 2761008.

Almost surely, 2^20002045401 is an apocalyptic number.

It is an amenable number.

20002045401 is a deficient number, since it is larger than the sum of its proper divisors (12115940135).

20002045401 is a wasteful number, since it uses less digits than its factorization.

20002045401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5514813 (or 5514810 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 20002045401 its reverse (10454020002), we get a palindrome (30456065403).

The spelling of 20002045401 in words is "twenty billion, two million, forty-five thousand, four hundred one".