10663665 has 8 divisors (see below), whose sum is σ = 17061888. Its totient is φ = 5687280.

The previous prime is 10663661. The next prime is 10663687. The reversal of 10663665 is 56636601.

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

It is not a de Polignac number, because 10663665 - 2² = 10663661 is a prime.

It is a super-2 number, since 2×10663665² = 227427502464450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10663661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355441 + ... + 355470.

It is an arithmetic number, because the mean of its divisors is an integer number (2132736).

Almost surely, 2^10663665 is an apocalyptic number.

10663665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10663665 is a deficient number, since it is larger than the sum of its proper divisors (6398223).

10663665 is an equidigital number, since it uses as much as digits as its factorization.

10663665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710919.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 10663665 is about 3265.5267568954. The cubic root of 10663665 is about 220.1078328121.

The spelling of 10663665 in words is "ten million, six hundred sixty-three thousand, six hundred sixty-five".