20423465536205 has 8 divisors (see below), whose sum is σ = 24548139330072. Its totient is φ = 16312118637888.

The previous prime is 20423465536183. The next prime is 20423465536211. The reversal of 20423465536205 is 50263556432402.

It can be written as a sum of positive squares in 4 ways, for example, as 1396020230089 + 19027445306116 = 1181533^2 + 4362046^2 .

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 20423465536205 - 2¹⁰ = 20423465535181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20423465536205.

It is a congruent 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, 3331720514 + ... + 3331726643.

It is an arithmetic number, because the mean of its divisors is an integer number (3068517416259).

Almost surely, 2^{20423465536205} is an apocalyptic number.

It is an amenable number.

20423465536205 is a deficient number, since it is larger than the sum of its proper divisors (4124673793867).

20423465536205 is an equidigital number, since it uses as much as digits as its factorization.

20423465536205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6663447775.

The product of its (nonzero) digits is 5184000, while the sum is 47.

The spelling of 20423465536205 in words is "twenty trillion, four hundred twenty-three billion, four hundred sixty-five million, five hundred thirty-six thousand, two hundred five".