205641524965 has 16 divisors (see below), whose sum is σ = 253428238080. Its totient is φ = 160113392320.

The previous prime is 205641524929. The next prime is 205641524993. The reversal of 205641524965 is 569425146502.

It is not a de Polignac number, because 205641524965 - 2¹⁵ = 205641492197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2402266 + ... + 2486395.

It is an arithmetic number, because the mean of its divisors is an integer number (15839264880).

Almost surely, 2^205641524965 is an apocalyptic number.

It is an amenable number.

205641524965 is a deficient number, since it is larger than the sum of its proper divisors (47786713115).

205641524965 is a wasteful number, since it uses less digits than its factorization.

205641524965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888892.

The product of its (nonzero) digits is 2592000, while the sum is 49.

The spelling of 205641524965 in words is "two hundred five billion, six hundred forty-one million, five hundred twenty-four thousand, nine hundred sixty-five".