205316605444513 has 8 divisors (see below), whose sum is σ = 217396228151520. Its totient is φ = 193237224440640.

The previous prime is 205316605444507. The next prime is 205316605444543. The reversal of 205316605444513 is 315444506613502.

It is a happy number.

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 205316605444513 - 2⁵ = 205316605444481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205316605444543) 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, 58675443 + ... + 62076088.

It is an arithmetic number, because the mean of its divisors is an integer number (27174528518940).

Almost surely, 2^{205316605444513} is an apocalyptic number.

It is an amenable number.

205316605444513 is a deficient number, since it is larger than the sum of its proper divisors (12079622707007).

205316605444513 is a wasteful number, since it uses less digits than its factorization.

205316605444513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120851567.

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 205316605444513 in words is "two hundred five trillion, three hundred sixteen billion, six hundred five million, four hundred forty-four thousand, five hundred thirteen".