205063066 has 8 divisors (see below), whose sum is σ = 331255764. Its totient is φ = 94644480.

The previous prime is 205063051. The next prime is 205063069. The reversal of 205063066 is 660360502.

It can be written as a sum of positive squares in 2 ways, for example, as 180768025 + 24295041 = 13445^2 + 4929^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×205063066² = 84101722074640712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (205063069) 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, 3943495 + ... + 3943546.

Almost surely, 2^205063066 is an apocalyptic number.

205063066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

205063066 is a deficient number, since it is larger than the sum of its proper divisors (126192698).

205063066 is a wasteful number, since it uses less digits than its factorization.

205063066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7887056.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 205063066 is about 14320.0232541711. The cubic root of 205063066 is about 589.6973128998.

The spelling of 205063066 in words is "two hundred five million, sixty-three thousand, sixty-six".