206461650415 has 4 divisors (see below), whose sum is σ = 247753980504. Its totient is φ = 165169320328.

The previous prime is 206461650383. The next prime is 206461650419. The reversal of 206461650415 is 514056164602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 206461650415 - 2⁵ = 206461650383 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206461650419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20646165037 + ... + 20646165046.

It is an arithmetic number, because the mean of its divisors is an integer number (61938495126).

Almost surely, 2^206461650415 is an apocalyptic number.

206461650415 is a deficient number, since it is larger than the sum of its proper divisors (41292330089).

206461650415 is an equidigital number, since it uses as much as digits as its factorization.

206461650415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41292330088.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 206461650415 in words is "two hundred six billion, four hundred sixty-one million, six hundred fifty thousand, four hundred fifteen".