206591305421300 has 36 divisors (see below), whose sum is σ = 449957387925696. Its totient is φ = 82331590341600.

The previous prime is 206591305421243. The next prime is 206591305421311. The reversal of 206591305421300 is 3124503195602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3811620602 + ... + 3811674801.

Almost surely, 2^{206591305421300} is an apocalyptic number.

206591305421300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206591305421300 is an abundant number, since it is smaller than the sum of its proper divisors (243366082504396).

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

206591305421300 is a wasteful number, since it uses less digits than its factorization.

206591305421300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7623295688 (or 7623295681 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 206591305421300 in words is "two hundred six trillion, five hundred ninety-one billion, three hundred five million, four hundred twenty-one thousand, three hundred".