206427113280 has 560 divisors, whose sum is σ = 775913022720. Its totient is φ = 52009316352.

The previous prime is 206427113267. The next prime is 206427113287. The reversal of 206427113280 is 82311724602.

It is a happy number.

206427113280 is a `hidden beast` number, since 2 + 0 + 64 + 271 + 1 + 328 + 0 = 666.

It is a super-2 number, since 2×206427113280² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206427113287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 35326039 + ... + 35331881.

Almost surely, 2^206427113280 is an apocalyptic number.

206427113280 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 206427113280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387956511360).

206427113280 is an abundant number, since it is smaller than the sum of its proper divisors (569485909440).

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

206427113280 is a wasteful number, since it uses less digits than its factorization.

206427113280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5948 (or 5929 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

Adding to 206427113280 its reverse (82311724602), we get a palindrome (288738837882).

The spelling of 206427113280 in words is "two hundred six billion, four hundred twenty-seven million, one hundred thirteen thousand, two hundred eighty".