206322473280 has 672 divisors, whose sum is σ = 834308069760. Its totient is φ = 42717265920.

The previous prime is 206322473213. The next prime is 206322473299. The reversal of 206322473280 is 82374223602.

It is a tau number, because it is divible by the number of its divisors (672).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 193004586 + ... + 193005654.

Almost surely, 2^206322473280 is an apocalyptic number.

206322473280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206322473280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417154034880).

206322473280 is an abundant number, since it is smaller than the sum of its proper divisors (627985596480).

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

206322473280 is a wasteful number, since it uses less digits than its factorization.

206322473280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487 (or 1470 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 39.

Adding to 206322473280 its reverse (82374223602), we get a palindrome (288696696882).

The spelling of 206322473280 in words is "two hundred six billion, three hundred twenty-two million, four hundred seventy-three thousand, two hundred eighty".