8165458545618 has 64 divisors (see below), whose sum is σ = 18590977585152. Its totient is φ = 2366692289280.

The previous prime is 8165458545611. The next prime is 8165458545631.

8165458545618 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (8165458545611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37122330 + ... + 37341642.

It is an arithmetic number, because the mean of its divisors is an integer number (290484024768).

Almost surely, 2^{8165458545618} is an apocalyptic number.

8165458545618 is an abundant number, since it is smaller than the sum of its proper divisors (10425519039534).

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

8165458545618 is a wasteful number, since it uses less digits than its factorization.

8165458545618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243879.

The product of its digits is 184320000, while the sum is 66.

The spelling of 8165458545618 in words is "eight trillion, one hundred sixty-five billion, four hundred fifty-eight million, five hundred forty-five thousand, six hundred eighteen".