1066255885 has 8 divisors (see below), whose sum is σ = 1297035000. Its totient is φ = 841319424.

The previous prime is 1066255871. The next prime is 1066255891. The reversal of 1066255885 is 5885526601.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 252237924 + 814017961 = 15882^2 + 28531^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066255885 is a prime.

It is a super-3 number, since 3×1066255885³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 7 ways as a sum of consecutive naturals, for example, 1460260 + ... + 1460989.

It is an arithmetic number, because the mean of its divisors is an integer number (162129375).

Almost surely, 2^1066255885 is an apocalyptic number.

It is an amenable number.

1066255885 is a deficient number, since it is larger than the sum of its proper divisors (230779115).

1066255885 is an equidigital number, since it uses as much as digits as its factorization.

1066255885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921327.

The product of its (nonzero) digits is 576000, while the sum is 46.

The square root of 1066255885 is about 32653.5738472835. The cubic root of 1066255885 is about 1021.6147322400.

The spelling of 1066255885 in words is "one billion, sixty-six million, two hundred fifty-five thousand, eight hundred eighty-five".