1068147665 has 8 divisors (see below), whose sum is σ = 1380375528. Its totient is φ = 788785920.

The previous prime is 1068147631. The next prime is 1068147673. The reversal of 1068147665 is 5667418601.

It can be written as a sum of positive squares in 4 ways, for example, as 753424 + 1067394241 = 868^2 + 32671^2 .

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

It is not a de Polignac number, because 1068147665 - 2¹⁰ = 1068146641 is a prime.

It is a super-2 number, since 2×1068147665² = 2281878868489904450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8216456 + ... + 8216585.

It is an arithmetic number, because the mean of its divisors is an integer number (172546941).

Almost surely, 2^1068147665 is an apocalyptic number.

It is an amenable number.

1068147665 is a deficient number, since it is larger than the sum of its proper divisors (312227863).

1068147665 is a wasteful number, since it uses less digits than its factorization.

1068147665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16433059.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 1068147665 is about 32682.5284364597. The cubic root of 1068147665 is about 1022.2185674207.

The spelling of 1068147665 in words is "one billion, sixty-eight million, one hundred forty-seven thousand, six hundred sixty-five".