18466493065 has 8 divisors (see below), whose sum is σ = 22379196168. Its totient is φ = 14626924800.

The previous prime is 18466493063. The next prime is 18466493141. The reversal of 18466493065 is 56039466481.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5607613456 + 12858879609 = 74884^2 + 113397^2 .

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

It is not a de Polignac number, because 18466493065 - 2¹ = 18466493063 is a prime.

It is a super-2 number, since 2×18466493065² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18466493063) 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, 18283152 + ... + 18284161.

It is an arithmetic number, because the mean of its divisors is an integer number (2797399521).

Almost surely, 2^18466493065 is an apocalyptic number.

It is an amenable number.

18466493065 is a deficient number, since it is larger than the sum of its proper divisors (3912703103).

18466493065 is a wasteful number, since it uses less digits than its factorization.

18466493065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36567419.

The product of its (nonzero) digits is 3732480, while the sum is 52.

It can be divided in two parts, 184664 and 93065, that added together give a square (277729 = 527²).

The spelling of 18466493065 in words is "eighteen billion, four hundred sixty-six million, four hundred ninety-three thousand, sixty-five".