916465564618 has 8 divisors (see below), whose sum is σ = 1400636051748. Its totient is φ = 449586880704.

The previous prime is 916465564613. The next prime is 916465564627. The reversal of 916465564618 is 816465564619.

It can be written as a sum of positive squares in 2 ways, for example, as 865184603409 + 51280961209 = 930153^2 + 226453^2 .

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

It is a super-2 number, since 2×916465564618² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (916465564613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4322950671 + ... + 4322950882.

Almost surely, 2^916465564618 is an apocalyptic number.

916465564618 is a deficient number, since it is larger than the sum of its proper divisors (484170487130).

916465564618 is a wasteful number, since it uses less digits than its factorization.

916465564618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8645901608.

The product of its digits is 37324800, while the sum is 61.

Subtracting from 916465564618 its reverse (816465564619), we obtain a palindrome (99999999999).

The spelling of 916465564618 in words is "nine hundred sixteen billion, four hundred sixty-five million, five hundred sixty-four thousand, six hundred eighteen".