11085201618 has 32 divisors (see below), whose sum is σ = 22475952576. Its totient is φ = 3644295168.

The previous prime is 11085201593. The next prime is 11085201643. The reversal of 11085201618 is 81610258011.

It is an interprime number because it is at equal distance from previous prime (11085201593) and next prime (11085201643).

It is a super-4 number, since 4×11085201618⁴ (a number of 41 digits) contains 4444 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276546 + ... + 314082.

It is an arithmetic number, because the mean of its divisors is an integer number (702373518).

Almost surely, 2^11085201618 is an apocalyptic number.

11085201618 is an abundant number, since it is smaller than the sum of its proper divisors (11390750958).

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

11085201618 is a wasteful number, since it uses less digits than its factorization.

11085201618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38218.

The product of its (nonzero) digits is 3840, while the sum is 33.

Adding to 11085201618 its reverse (81610258011), we get a palindrome (92695459629).

The spelling of 11085201618 in words is "eleven billion, eighty-five million, two hundred one thousand, six hundred eighteen".