20365144363705 has 8 divisors (see below), whose sum is σ = 24438267289800. Its totient is φ = 16292052788736.

The previous prime is 20365144363691. The next prime is 20365144363727. The reversal of 20365144363705 is 50736344156302.

It can be written as a sum of positive squares in 4 ways, for example, as 732544268544 + 19632600095161 = 855888^2 + 4430869^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20365144363705 - 2¹³ = 20365144355513 is a prime.

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, 6384190 + ... + 9027079.

It is an arithmetic number, because the mean of its divisors is an integer number (3054783411225).

Almost surely, 2^{20365144363705} is an apocalyptic number.

It is an amenable number.

20365144363705 is a deficient number, since it is larger than the sum of its proper divisors (4073122926095).

20365144363705 is a wasteful number, since it uses less digits than its factorization.

20365144363705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15675563.

The product of its (nonzero) digits is 5443200, while the sum is 49.

The spelling of 20365144363705 in words is "twenty trillion, three hundred sixty-five billion, one hundred forty-four million, three hundred sixty-three thousand, seven hundred five".