206246213541 has 6 divisors (see below), whose sum is σ = 297911197350. Its totient is φ = 137497475688.

The previous prime is 206246213539. The next prime is 206246213557. The reversal of 206246213541 is 145312642602.

206246213541 is a `hidden beast` number, since 2 + 0 + 6 + 24 + 621 + 3 + 5 + 4 + 1 = 666.

206246213541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 179716644900 + 26529568641 = 423930^2 + 162879^2 .

It is not a de Polignac number, because 206246213541 - 2¹ = 206246213539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206246213496 and 206246213505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206246213141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11458122966 + ... + 11458122983.

It is an arithmetic number, because the mean of its divisors is an integer number (49651866225).

Almost surely, 2^206246213541 is an apocalyptic number.

It is an amenable number.

206246213541 is a deficient number, since it is larger than the sum of its proper divisors (91664983809).

206246213541 is a wasteful number, since it uses less digits than its factorization.

206246213541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22916245955 (or 22916245952 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 206246213541 in words is "two hundred six billion, two hundred forty-six million, two hundred thirteen thousand, five hundred forty-one".