8164421120 has 40 divisors (see below), whose sum is σ = 19575481464. Its totient is φ = 3265767424.

The previous prime is 8164421117. The next prime is 8164421171. The reversal of 8164421120 is 211244618.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1592054 + ... + 1597173.

Almost surely, 2^8164421120 is an apocalyptic number.

8164421120 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8164421120 is an abundant number, since it is smaller than the sum of its proper divisors (11411060344).

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

8164421120 is an equidigital number, since it uses as much as digits as its factorization.

8164421120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3189250 (or 3189234 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 8164421120 is about 90357.1863218416. The cubic root of 8164421120 is about 2013.6089482287.

Adding to 8164421120 its reverse (211244618), we get a palindrome (8375665738).

The spelling of 8164421120 in words is "eight billion, one hundred sixty-four million, four hundred twenty-one thousand, one hundred twenty".