20444363556153 has 8 divisors (see below), whose sum is σ = 27259172330016. Its totient is φ = 13629565243200.

The previous prime is 20444363556131. The next prime is 20444363556209. The reversal of 20444363556153 is 35165536344402.

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

It is not a de Polignac number, because 20444363556153 - 2⁵ = 20444363556121 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 20444363556096 and 20444363556105.

It is not an unprimeable number, because it can be changed into a prime (20444363556553) 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, 5988898 + ... + 8761028.

It is an arithmetic number, because the mean of its divisors is an integer number (3407396541252).

Almost surely, 2^{20444363556153} is an apocalyptic number.

It is an amenable number.

20444363556153 is a deficient number, since it is larger than the sum of its proper divisors (6814808773863).

20444363556153 is a wasteful number, since it uses less digits than its factorization.

20444363556153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5230455.

The product of its (nonzero) digits is 15552000, while the sum is 51.

The spelling of 20444363556153 in words is "twenty trillion, four hundred forty-four billion, three hundred sixty-three million, five hundred fifty-six thousand, one hundred fifty-three".