205664082 has 16 divisors (see below), whose sum is σ = 442968960. Its totient is φ = 63281232.

The previous prime is 205664059. The next prime is 205664083. The reversal of 205664082 is 280466502.

It is not an unprimeable number, because it can be changed into a prime (205664083) 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, 1318282 + ... + 1318437.

It is an arithmetic number, because the mean of its divisors is an integer number (27685560).

Almost surely, 2^205664082 is an apocalyptic number.

205664082 is an abundant number, since it is smaller than the sum of its proper divisors (237304878).

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

205664082 is a wasteful number, since it uses less digits than its factorization.

205664082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636737.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 205664082 is about 14340.9930618490. The cubic root of 205664082 is about 590.2728623923.

The spelling of 205664082 in words is "two hundred five million, six hundred sixty-four thousand, eighty-two".