20045200215 has 16 divisors (see below), whose sum is σ = 32100212736. Its totient is φ = 10681476000.

The previous prime is 20045200199. The next prime is 20045200223. The reversal of 20045200215 is 51200254002.

It is a happy number.

It is not a de Polignac number, because 20045200215 - 2⁴ = 20045200199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20045200191 and 20045200200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563251 + ... + 597780.

It is an arithmetic number, because the mean of its divisors is an integer number (2006263296).

Almost surely, 2^20045200215 is an apocalyptic number.

20045200215 is a deficient number, since it is larger than the sum of its proper divisors (12055012521).

20045200215 is a wasteful number, since it uses less digits than its factorization.

20045200215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162190.

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 20045200215 its reverse (51200254002), we get a palindrome (71245454217).

The spelling of 20045200215 in words is "twenty billion, forty-five million, two hundred thousand, two hundred fifteen".