20223353445 has 16 divisors (see below), whose sum is σ = 32379886080. Its totient is φ = 10778281664.

The previous prime is 20223353419. The next prime is 20223353519. The reversal of 20223353445 is 54435332202.

It is a cyclic number.

It is not a de Polignac number, because 20223353445 - 2⁵ = 20223353413 is a prime.

It is a super-2 number, since 2×20223353445² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446874 + ... + 490043.

It is an arithmetic number, because the mean of its divisors is an integer number (2023742880).

Almost surely, 2^20223353445 is an apocalyptic number.

It is an amenable number.

20223353445 is a deficient number, since it is larger than the sum of its proper divisors (12156532635).

20223353445 is a wasteful number, since it uses less digits than its factorization.

20223353445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938364.

The product of its (nonzero) digits is 86400, while the sum is 33.

Adding to 20223353445 its reverse (54435332202), we get a palindrome (74658685647).

The spelling of 20223353445 in words is "twenty billion, two hundred twenty-three million, three hundred fifty-three thousand, four hundred forty-five".