1050666685 has 4 divisors (see below), whose sum is σ = 1260800028. Its totient is φ = 840533344.

The previous prime is 1050666677. The next prime is 1050666707. The reversal of 1050666685 is 5866660501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 451690009 + 598976676 = 21253^2 + 24474^2 .

It is a cyclic number.

It is not a de Polignac number, because 1050666685 - 2³ = 1050666677 is a prime.

It is a super-2 number, since 2×1050666685² = 2207800965937778450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105066664 + ... + 105066673.

It is an arithmetic number, because the mean of its divisors is an integer number (315200007).

Almost surely, 2^1050666685 is an apocalyptic number.

It is an amenable number.

1050666685 is a deficient number, since it is larger than the sum of its proper divisors (210133343).

1050666685 is an equidigital number, since it uses as much as digits as its factorization.

1050666685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210133342.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 1050666685 is about 32413.9890325150. The cubic root of 1050666685 is about 1016.6114275580.

The spelling of 1050666685 in words is "one billion, fifty million, six hundred sixty-six thousand, six hundred eighty-five".