206006641 has 8 divisors (see below), whose sum is σ = 208947200. Its totient is φ = 203074560.

The previous prime is 206006627. The next prime is 206006659. The reversal of 206006641 is 146600602.

It is a happy number.

206006641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206006641 - 2⁷ = 206006513 is a prime.

It is a super-2 number, since 2×206006641² = 84877472272205762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206006611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59056 + ... + 62446.

It is an arithmetic number, because the mean of its divisors is an integer number (26118400).

Almost surely, 2^206006641 is an apocalyptic number.

It is an amenable number.

206006641 is a deficient number, since it is larger than the sum of its proper divisors (2940559).

206006641 is an equidigital number, since it uses as much as digits as its factorization.

206006641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 206006641 is about 14352.9314427402. The cubic root of 206006641 is about 590.6004047912.

The spelling of 206006641 in words is "two hundred six million, six thousand, six hundred forty-one".