205056164 has 12 divisors (see below), whose sum is σ = 367193904. Its totient is φ = 100143624.

The previous prime is 205056143. The next prime is 205056169. The reversal of 205056164 is 461650502.

It is not an unprimeable number, because it can be changed into a prime (205056169) 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, 595922 + ... + 596265.

It is an arithmetic number, because the mean of its divisors is an integer number (30599492).

Almost surely, 2^205056164 is an apocalyptic number.

It is an amenable number.

205056164 is a deficient number, since it is larger than the sum of its proper divisors (162137740).

205056164 is a wasteful number, since it uses less digits than its factorization.

205056164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192234 (or 1192232 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 205056164 is about 14319.7822609144. The cubic root of 205056164 is about 589.6906968270.

The spelling of 205056164 in words is "two hundred five million, fifty-six thousand, one hundred sixty-four".