206645256352 has 24 divisors (see below), whose sum is σ = 406879442676. Its totient is φ = 103310794752.

The previous prime is 206645256347. The next prime is 206645256361. The reversal of 206645256352 is 253652546602.

It can be written as a sum of positive squares in 2 ways, for example, as 150516065296 + 56129191056 = 387964^2 + 236916^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 82593 + ... + 648160.

Almost surely, 2^206645256352 is an apocalyptic number.

It is an amenable number.

206645256352 is a deficient number, since it is larger than the sum of its proper divisors (200234186324).

206645256352 is an equidigital number, since it uses as much as digits as its factorization.

206645256352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739600 (or 739592 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 46.

The spelling of 206645256352 in words is "two hundred six billion, six hundred forty-five million, two hundred fifty-six thousand, three hundred fifty-two".