20523464060089 has 27 divisors (see below), whose sum is σ = 21181468387053. Its totient is φ = 19885695349632.

The previous prime is 20523464060081. The next prime is 20523464060093. The reversal of 20523464060089 is 98006046432502.

It is a happy number.

The square root of 20523464060089 is 4530283.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 17758360680489 + 2765103379600 = 4214067^2 + 1662860^2 .

It is not a de Polignac number, because 20523464060089 - 2³ = 20523464060081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20523464060081) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 24060332587 + ... + 24060333439.

Almost surely, 2^{20523464060089} is an apocalyptic number.

20523464060089 is the 4530283-rd square number.

20523464060089 is the 2265142-nd centered octagonal number.

It is an amenable number.

20523464060089 is a deficient number, since it is larger than the sum of its proper divisors (658004326964).

20523464060089 is an frugal number, since it uses more digits than its factorization.

20523464060089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 20523464060089 in words is "twenty trillion, five hundred twenty-three billion, four hundred sixty-four million, sixty thousand, eighty-nine".