20444155713361 has 4 divisors (see below), whose sum is σ = 20449932534000. Its totient is φ = 20438378892724.

The previous prime is 20444155713347. The next prime is 20444155713403. The reversal of 20444155713361 is 16331755144402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20444155713361 - 2⁵ = 20444155713329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20444155711361) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2888405011 + ... + 2888412088.

It is an arithmetic number, because the mean of its divisors is an integer number (5112483133500).

Almost surely, 2^{20444155713361} is an apocalyptic number.

It is an amenable number.

20444155713361 is a deficient number, since it is larger than the sum of its proper divisors (5776820639).

20444155713361 is an equidigital number, since it uses as much as digits as its factorization.

20444155713361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5776820638.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 20444155713361 in words is "twenty trillion, four hundred forty-four billion, one hundred fifty-five million, seven hundred thirteen thousand, three hundred sixty-one".