1068766665 has 32 divisors (see below), whose sum is σ = 1741483776. Its totient is φ = 559560960.

The previous prime is 1068766637. The next prime is 1068766687. The reversal of 1068766665 is 5666678601.

It is a happy number.

It is not a de Polignac number, because 1068766665 - 2⁸ = 1068766409 is a prime.

It is a super-2 number, since 2×1068766665² = 2284524368430444450, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 691884 + ... + 693426.

It is an arithmetic number, because the mean of its divisors is an integer number (54421368).

Almost surely, 2^1068766665 is an apocalyptic number.

1068766665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1068766665 is a deficient number, since it is larger than the sum of its proper divisors (672717111).

1068766665 is a wasteful number, since it uses less digits than its factorization.

1068766665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The square root of 1068766665 is about 32691.9969564418. The cubic root of 1068766665 is about 1022.4159905314.

The spelling of 1068766665 in words is "one billion, sixty-eight million, seven hundred sixty-six thousand, six hundred sixty-five".