8164554618 has 48 divisors (see below), whose sum is σ = 17963886528. Its totient is φ = 2471990400.

The previous prime is 8164554611. The next prime is 8164554637.

8164554618 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×8164554618² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8164554611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 983955 + ... + 992217.

It is an arithmetic number, because the mean of its divisors is an integer number (374247636).

Almost surely, 2^8164554618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8164554618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8981943264).

8164554618 is an abundant number, since it is smaller than the sum of its proper divisors (9799331910).

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

8164554618 is a wasteful number, since it uses less digits than its factorization.

8164554618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9651 (or 9640 counting only the distinct ones).

The product of its digits is 921600, while the sum is 48.

The square root of 8164554618 is about 90357.9250425772. The cubic root of 8164554618 is about 2013.6199231363.

The spelling of 8164554618 in words is "eight billion, one hundred sixty-four million, five hundred fifty-four thousand, six hundred eighteen".