206550641 has 8 divisors (see below), whose sum is σ = 227103744. Its totient is φ = 186293520.

The previous prime is 206550611. The next prime is 206550667. The reversal of 206550641 is 146055602.

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 206550641 - 2²⁶ = 139441777 is a prime.

It is a super-3 number, since 3×206550641³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206550611) 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, 72530 + ... + 75323.

It is an arithmetic number, because the mean of its divisors is an integer number (28387968).

Almost surely, 2^206550641 is an apocalyptic number.

It is an amenable number.

206550641 is a deficient number, since it is larger than the sum of its proper divisors (20553103).

206550641 is a wasteful number, since it uses less digits than its factorization.

206550641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147991.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 206550641 is about 14371.8697809297. The cubic root of 206550641 is about 591.1198123639.

The spelling of 206550641 in words is "two hundred six million, five hundred fifty thousand, six hundred forty-one".