1066216205 has 16 divisors (see below), whose sum is σ = 1295927424. Its totient is φ = 842063040.

The previous prime is 1066216147. The next prime is 1066216223. The reversal of 1066216205 is 5026126601.

It is a de Polignac number, because none of the positive numbers 2^k-1066216205 is a prime.

It is a super-2 number, since 2×1066216205² = 2273633991609204050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124904 + ... + 133166.

It is an arithmetic number, because the mean of its divisors is an integer number (80995464).

Almost surely, 2^1066216205 is an apocalyptic number.

It is an amenable number.

1066216205 is a deficient number, since it is larger than the sum of its proper divisors (229711219).

1066216205 is a wasteful number, since it uses less digits than its factorization.

1066216205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8596.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1066216205 is about 32652.9662511693. The cubic root of 1066216205 is about 1021.6020591797.

The spelling of 1066216205 in words is "one billion, sixty-six million, two hundred sixteen thousand, two hundred five".