1066667716 has 36 divisors (see below), whose sum is σ = 1960877100. Its totient is φ = 507556800.

The previous prime is 1066667689. The next prime is 1066667741. The reversal of 1066667716 is 6177666601.

It is a happy number.

1066667716 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 345960000 + 720707716 = 18600^2 + 26846^2 .

It is a super-2 number, since 2×1066667716² = 2275560032713313312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232210 + ... + 236758.

Almost surely, 2^1066667716 is an apocalyptic number.

It is an amenable number.

1066667716 is a deficient number, since it is larger than the sum of its proper divisors (894209384).

1066667716 is a wasteful number, since it uses less digits than its factorization.

1066667716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4676 (or 4643 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 1066667716 is about 32659.8793016753. The cubic root of 1066667716 is about 1021.7462449055.

The spelling of 1066667716 in words is "one billion, sixty-six million, six hundred sixty-seven thousand, seven hundred sixteen".