206123502641 has 8 divisors (see below), whose sum is σ = 235604066880. Its totient is φ = 176651525808.

The previous prime is 206123502631. The next prime is 206123502643. The reversal of 206123502641 is 146205321602.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206123502641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206123502598 and 206123502607.

It is not an unprimeable number, because it can be changed into a prime (206123502643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2095331 + ... + 2191496.

It is an arithmetic number, because the mean of its divisors is an integer number (29450508360).

Almost surely, 2^206123502641 is an apocalyptic number.

It is an amenable number.

206123502641 is a deficient number, since it is larger than the sum of its proper divisors (29480564239).

206123502641 is an equidigital number, since it uses as much as digits as its factorization.

206123502641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4293703.

The product of its (nonzero) digits is 17280, while the sum is 32.

It can be divided in two parts, 20612 and 3502641, that added together give a palindrome (3523253).

The spelling of 206123502641 in words is "two hundred six billion, one hundred twenty-three million, five hundred two thousand, six hundred forty-one".