20353204445 has 8 divisors (see below), whose sum is σ = 27912966144. Its totient is φ = 13956483024.

The previous prime is 20353204433. The next prime is 20353204447. The reversal of 20353204445 is 54440235302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20353204445 - 2²⁴ = 20336427229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20353204447) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 290760029 + ... + 290760098.

It is an arithmetic number, because the mean of its divisors is an integer number (3489120768).

Almost surely, 2^20353204445 is an apocalyptic number.

It is an amenable number.

20353204445 is a deficient number, since it is larger than the sum of its proper divisors (7559761699).

20353204445 is an equidigital number, since it uses as much as digits as its factorization.

20353204445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581520139.

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 20353204445 its reverse (54440235302), we get a palindrome (74793439747).

The spelling of 20353204445 in words is "twenty billion, three hundred fifty-three million, two hundred four thousand, four hundred forty-five".