8196618240 has 576 divisors, whose sum is σ = 31072204800. Its totient is φ = 1990656000.

The previous prime is 8196618211. The next prime is 8196618253. The reversal of 8196618240 is 428166918.

8196618240 is a `hidden beast` number, since 8 + 1 + 9 + 6 + 618 + 24 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 54282165 + ... + 54282315.

It is an arithmetic number, because the mean of its divisors is an integer number (53944800).

Almost surely, 2^8196618240 is an apocalyptic number.

8196618240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8196618240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15536102400).

8196618240 is an abundant number, since it is smaller than the sum of its proper divisors (22875586560).

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

8196618240 is a wasteful number, since it uses less digits than its factorization.

8196618240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 8196618240 is about 90535.1768099008. The cubic root of 8196618240 is about 2016.2524249305.

The spelling of 8196618240 in words is "eight billion, one hundred ninety-six million, six hundred eighteen thousand, two hundred forty".