205303215601 has 8 divisors (see below), whose sum is σ = 224237973024. Its totient is φ = 186413596320.

The previous prime is 205303215577. The next prime is 205303215643. The reversal of 205303215601 is 106512303502.

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 205303215601 - 2⁵ = 205303215569 is a prime.

It is a super-2 number, since 2×205303215601² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205303215601.

It is not an unprimeable number, because it can be changed into a prime (205303215001) 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, 11275020 + ... + 11293213.

It is an arithmetic number, because the mean of its divisors is an integer number (28029746628).

Almost surely, 2^205303215601 is an apocalyptic number.

It is an amenable number.

205303215601 is a deficient number, since it is larger than the sum of its proper divisors (18934757423).

205303215601 is a wasteful number, since it uses less digits than its factorization.

205303215601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22569071.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 205303215601 in words is "two hundred five billion, three hundred three million, two hundred fifteen thousand, six hundred one".