206242521375 has 64 divisors (see below), whose sum is σ = 374714915328. Its totient is φ = 99908640000.

The previous prime is 206242521313. The next prime is 206242521379. The reversal of 206242521375 is 573125242602.

It is not a de Polignac number, because 206242521375 - 2⁶ = 206242521311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206242521379) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 4809027 + ... + 4851723.

It is an arithmetic number, because the mean of its divisors is an integer number (5854920552).

Almost surely, 2^206242521375 is an apocalyptic number.

206242521375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

206242521375 is a deficient number, since it is larger than the sum of its proper divisors (168472393953).

206242521375 is a wasteful number, since it uses less digits than its factorization.

206242521375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43897 (or 43887 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

Adding to 206242521375 its reverse (573125242602), we get a palindrome (779367763977).

The spelling of 206242521375 in words is "two hundred six billion, two hundred forty-two million, five hundred twenty-one thousand, three hundred seventy-five".