206164623422515 has 8 divisors (see below), whose sum is σ = 253150979458608. Its totient is φ = 161096077836960.

The previous prime is 206164623422501. The next prime is 206164623422531. The reversal of 206164623422515 is 515224326461602.

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

It is a de Polignac number, because none of the positive numbers 2^k-206164623422515 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 479452612396 + ... + 479452612825.

It is an arithmetic number, because the mean of its divisors is an integer number (31643872432326).

Almost surely, 2^{206164623422515} is an apocalyptic number.

206164623422515 is a deficient number, since it is larger than the sum of its proper divisors (46986356036093).

206164623422515 is an equidigital number, since it uses as much as digits as its factorization.

206164623422515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958905225269.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 206164623422515 in words is "two hundred six trillion, one hundred sixty-four billion, six hundred twenty-three million, four hundred twenty-two thousand, five hundred fifteen".