205060065 has 128 divisors (see below), whose sum is σ = 425779200. Its totient is φ = 82114560.

The previous prime is 205060061. The next prime is 205060067. The reversal of 205060065 is 560060502.

It is not a de Polignac number, because 205060065 - 2² = 205060061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205060061) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1881231 + ... + 1881339.

It is an arithmetic number, because the mean of its divisors is an integer number (3326400).

Almost surely, 2^205060065 is an apocalyptic number.

It is an amenable number.

205060065 is an abundant number, since it is smaller than the sum of its proper divisors (220719135).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205060065 is a wasteful number, since it uses less digits than its factorization.

205060065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 205060065 is about 14319.9184704383. The cubic root of 205060065 is about 589.6944362396.

The spelling of 205060065 in words is "two hundred five million, sixty thousand, sixty-five".