8164560408 has 32 divisors (see below), whose sum is σ = 20421980160. Its totient is φ = 2720109600.

The previous prime is 8164560407. The next prime is 8164560409. The reversal of 8164560408 is 8040654618.

It is an interprime number because it is at equal distance from previous prime (8164560407) and next prime (8164560409).

It is a super-2 number, since 2×8164560408² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8164560408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8164560407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40360 + ... + 134007.

It is an arithmetic number, because the mean of its divisors is an integer number (638186880).

Almost surely, 2^8164560408 is an apocalyptic number.

It is an amenable number.

8164560408 is an abundant number, since it is smaller than the sum of its proper divisors (12257419752).

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

8164560408 is a wasteful number, since it uses less digits than its factorization.

8164560408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176327 (or 176323 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 8164560408 is about 90357.9570818199. The cubic root of 8164560408 is about 2013.6203991311.

The spelling of 8164560408 in words is "eight billion, one hundred sixty-four million, five hundred sixty thousand, four hundred eight".