206549231040 has 224 divisors, whose sum is σ = 767010912000. Its totient is φ = 52180816896.

The previous prime is 206549230999. The next prime is 206549231069. The reversal of 206549231040 is 40132945602.

It is a happy number.

206549231040 is a `hidden beast` number, since 2 + 0 + 6 + 549 + 2 + 3 + 104 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 206549230986 and 206549231004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 464950 + ... + 793269.

Almost surely, 2^206549231040 is an apocalyptic number.

206549231040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206549231040 is an abundant number, since it is smaller than the sum of its proper divisors (560461680960).

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

206549231040 is a wasteful number, since it uses less digits than its factorization.

206549231040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258264 (or 1258248 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 206549231040 in words is "two hundred six billion, five hundred forty-nine million, two hundred thirty-one thousand, forty".