4445564333121 has 48 divisors (see below), whose sum is σ = 6557357776320. Its totient is φ = 2901376558080.

The previous prime is 4445564333113. The next prime is 4445564333123. The reversal of 4445564333121 is 1213334655444.

4445564333121 is a `hidden beast` number, since 4 + 4 + 4 + 5 + 564 + 33 + 31 + 21 = 666.

It is not a de Polignac number, because 4445564333121 - 2³ = 4445564333113 is a prime.

It is a super-2 number, since 2×4445564333121² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4445564333123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 279464250 + ... + 279480156.

It is an arithmetic number, because the mean of its divisors is an integer number (136611620340).

Almost surely, 2^{4445564333121} is an apocalyptic number.

It is an amenable number.

4445564333121 is a deficient number, since it is larger than the sum of its proper divisors (2111793443199).

4445564333121 is a wasteful number, since it uses less digits than its factorization.

4445564333121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18126 (or 18123 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 45.

Adding to 4445564333121 its reverse (1213334655444), we get a palindrome (5658898988565).

The spelling of 4445564333121 in words is "four trillion, four hundred forty-five billion, five hundred sixty-four million, three hundred thirty-three thousand, one hundred twenty-one".