206430665141 has 4 divisors (see below), whose sum is σ = 206434308384. Its totient is φ = 206427021900.

The previous prime is 206430665137. The next prime is 206430665159. The reversal of 206430665141 is 141566034602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 206430665141 - 2² = 206430665137 is a prime.

It is a super-2 number, since 2×206430665141² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206430665095 and 206430665104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206430665341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1735265 + ... + 1850406.

It is an arithmetic number, because the mean of its divisors is an integer number (51608577096).

Almost surely, 2^206430665141 is an apocalyptic number.

It is an amenable number.

206430665141 is a deficient number, since it is larger than the sum of its proper divisors (3643243).

206430665141 is an equidigital number, since it uses as much as digits as its factorization.

206430665141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643242.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 206430665141 its reverse (141566034602), we get a palindrome (347996699743).

The spelling of 206430665141 in words is "two hundred six billion, four hundred thirty million, six hundred sixty-five thousand, one hundred forty-one".