10664599 has 4 divisors (see below), whose sum is σ = 11634120. Its totient is φ = 9695080.

The previous prime is 10664581. The next prime is 10664639. The reversal of 10664599 is 99546601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10664599 - 2¹⁷ = 10533527 is a prime.

It is a super-2 number, since 2×10664599² = 227467343661602, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10664519) 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 3 ways as a sum of consecutive naturals, for example, 484744 + ... + 484765.

It is an arithmetic number, because the mean of its divisors is an integer number (2908530).

Almost surely, 2^10664599 is an apocalyptic number.

10664599 is a deficient number, since it is larger than the sum of its proper divisors (969521).

10664599 is an equidigital number, since it uses as much as digits as its factorization.

10664599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969520.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 10664599 is about 3265.6697628511. The cubic root of 10664599 is about 220.1142588303.

It can be divided in two parts, 1066 and 4599, that added together give a palindrome (5665).

The spelling of 10664599 in words is "ten million, six hundred sixty-four thousand, five hundred ninety-nine".