20444403256323 has 64 divisors (see below), whose sum is σ = 30817532313600. Its totient is φ = 11994598661760.

The previous prime is 20444403256289. The next prime is 20444403256331. The reversal of 20444403256323 is 32365230444402.

It is not a de Polignac number, because 20444403256323 - 2¹³ = 20444403248131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20444403256373) 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 63 ways as a sum of consecutive naturals, for example, 4699686 + ... + 7935732.

It is an arithmetic number, because the mean of its divisors is an integer number (481523942400).

Almost surely, 2^{20444403256323} is an apocalyptic number.

20444403256323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20444403256323 is a deficient number, since it is larger than the sum of its proper divisors (10373129057277).

20444403256323 is a wasteful number, since it uses less digits than its factorization.

20444403256323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236232.

The product of its (nonzero) digits is 1658880, while the sum is 42.

The spelling of 20444403256323 in words is "twenty trillion, four hundred forty-four billion, four hundred three million, two hundred fifty-six thousand, three hundred twenty-three".