1050606665 has 4 divisors (see below), whose sum is σ = 1260728004. Its totient is φ = 840485328.

The previous prime is 1050606649. The next prime is 1050606671. The reversal of 1050606665 is 5666060501.

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 380211001 + 670395664 = 19499^2 + 25892^2 .

It is a cyclic number.

It is not a de Polignac number, because 1050606665 - 2⁴ = 1050606649 is a prime.

It is a super-2 number, since 2×1050606665² = 2207548729084844450, 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 3 ways as a sum of consecutive naturals, for example, 105060662 + ... + 105060671.

It is an arithmetic number, because the mean of its divisors is an integer number (315182001).

Almost surely, 2^1050606665 is an apocalyptic number.

It is an amenable number.

1050606665 is a deficient number, since it is larger than the sum of its proper divisors (210121339).

1050606665 is an equidigital number, since it uses as much as digits as its factorization.

1050606665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210121338.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 1050606665 is about 32413.0631844631. The cubic root of 1050606665 is about 1016.5920689988.

The spelling of 1050606665 in words is "one billion, fifty million, six hundred six thousand, six hundred sixty-five".