4432021555113 has 12 divisors (see below), whose sum is σ = 6401831907588. Its totient is φ = 2954670423840.

The previous prime is 4432021555111. The next prime is 4432021555133. The reversal of 4432021555113 is 3115551202344.

4432021555113 is a `hidden beast` number, since 4 + 4 + 320 + 215 + 5 + 5 + 113 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1012824857664 + 3419196697449 = 1006392^2 + 1849107^2 .

It is not a de Polignac number, because 4432021555113 - 2¹ = 4432021555111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4432021555111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2403931 + ... + 3826607.

It is an arithmetic number, because the mean of its divisors is an integer number (533485992299).

Almost surely, 2^{4432021555113} is an apocalyptic number.

It is an amenable number.

4432021555113 is a deficient number, since it is larger than the sum of its proper divisors (1969810352475).

4432021555113 is a wasteful number, since it uses less digits than its factorization.

4432021555113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768824 (or 1768821 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 4432021555113 its reverse (3115551202344), we get a palindrome (7547572757457).

The spelling of 4432021555113 in words is "four trillion, four hundred thirty-two billion, twenty-one million, five hundred fifty-five thousand, one hundred thirteen".