10663818 has 16 divisors (see below), whose sum is σ = 23266656. Its totient is φ = 3231440.

The previous prime is 10663801. The next prime is 10663819. The reversal of 10663818 is 81836601.

10663818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10663818² = 227434028674248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10663819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80721 + ... + 80852.

It is an arithmetic number, because the mean of its divisors is an integer number (1454166).

Almost surely, 2^10663818 is an apocalyptic number.

10663818 is an abundant number, since it is smaller than the sum of its proper divisors (12602838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10663818 is a wasteful number, since it uses less digits than its factorization.

10663818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161589.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 10663818 is about 3265.5501833535. The cubic root of 10663818 is about 220.1088854939.

It can be divided in two parts, 1066 and 3818, that added together give a palindrome (4884).

The spelling of 10663818 in words is "ten million, six hundred sixty-three thousand, eight hundred eighteen".