205456602241 has 4 divisors (see below), whose sum is σ = 224134475184. Its totient is φ = 186778729300.

The previous prime is 205456602229. The next prime is 205456602269. The reversal of 205456602241 is 142206654502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205456602241 - 2⁹ = 205456601729 is a prime.

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 205456602241.

It is not an unprimeable number, because it can be changed into a prime (205456602271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9338936455 + ... + 9338936476.

It is an arithmetic number, because the mean of its divisors is an integer number (56033618796).

Almost surely, 2^205456602241 is an apocalyptic number.

It is an amenable number.

205456602241 is a deficient number, since it is larger than the sum of its proper divisors (18677872943).

205456602241 is a wasteful number, since it uses less digits than its factorization.

205456602241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18677872942.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 205456602241 in words is "two hundred five billion, four hundred fifty-six million, six hundred two thousand, two hundred forty-one".