206432360520 has 128 divisors (see below), whose sum is σ = 652029696000. Its totient is φ = 52140291840.

The previous prime is 206432360507. The next prime is 206432360521. The reversal of 206432360520 is 25063234602.

It is a super-2 number, since 2×206432360520² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206432360521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19217311 + ... + 19228049.

It is an arithmetic number, because the mean of its divisors is an integer number (5093982000).

Almost surely, 2^206432360520 is an apocalyptic number.

206432360520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206432360520 is an abundant number, since it is smaller than the sum of its proper divisors (445597335480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206432360520 is a wasteful number, since it uses less digits than its factorization.

206432360520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19203 (or 19199 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

The spelling of 206432360520 in words is "two hundred six billion, four hundred thirty-two million, three hundred sixty thousand, five hundred twenty".