1066773305 has 8 divisors (see below), whose sum is σ = 1378599432. Its totient is φ = 787771008.

The previous prime is 1066773289. The next prime is 1066773317. The reversal of 1066773305 is 5033776601.

It can be written as a sum of positive squares in 4 ways, for example, as 254466304 + 812307001 = 15952^2 + 28501^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1066773305 - 2⁴ = 1066773289 is a prime.

It is a super-2 number, since 2×1066773305² = 2276010568521246050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8205884 + ... + 8206013.

It is an arithmetic number, because the mean of its divisors is an integer number (172324929).

Almost surely, 2^1066773305 is an apocalyptic number.

It is an amenable number.

1066773305 is a deficient number, since it is larger than the sum of its proper divisors (311826127).

1066773305 is a wasteful number, since it uses less digits than its factorization.

1066773305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16411915.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 1066773305 is about 32661.4957557060. The cubic root of 1066773305 is about 1021.7799578738.

The spelling of 1066773305 in words is "one billion, sixty-six million, seven hundred seventy-three thousand, three hundred five".