1068692666 has 8 divisors (see below), whose sum is σ = 1613798100. Its totient is φ = 530759968.

The previous prime is 1068692663. The next prime is 1068692693. The reversal of 1068692666 is 6662968601.

It can be written as a sum of positive squares in 2 ways, for example, as 1022656441 + 46036225 = 31979^2 + 6785^2 .

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

It is a super-2 number, since 2×1068692666² = 2284208028724375112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1068692663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1792811 + ... + 1793406.

Almost surely, 2^1068692666 is an apocalyptic number.

1068692666 is a deficient number, since it is larger than the sum of its proper divisors (545105434).

1068692666 is a wasteful number, since it uses less digits than its factorization.

1068692666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3586368.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 1068692666 is about 32690.8651766820. The cubic root of 1068692666 is about 1022.3923933922.

The spelling of 1068692666 in words is "one billion, sixty-eight million, six hundred ninety-two thousand, six hundred sixty-six".