20443760228305 has 8 divisors (see below), whose sum is σ = 24551368939944. Its totient is φ = 16342437072000.

The previous prime is 20443760228273. The next prime is 20443760228357. The reversal of 20443760228305 is 50382206734402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 125230346641 + 20318529881664 = 353879^2 + 4507608^2 .

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

It is not a de Polignac number, because 20443760228305 - 2⁵ = 20443760228273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1571381676 + ... + 1571394685.

It is an arithmetic number, because the mean of its divisors is an integer number (3068921117493).

Almost surely, 2^{20443760228305} is an apocalyptic number.

It is an amenable number.

20443760228305 is a deficient number, since it is larger than the sum of its proper divisors (4107608711639).

20443760228305 is a wasteful number, since it uses less digits than its factorization.

20443760228305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142777667.

The product of its (nonzero) digits is 1935360, while the sum is 46.

The spelling of 20443760228305 in words is "twenty trillion, four hundred forty-three billion, seven hundred sixty million, two hundred twenty-eight thousand, three hundred five".