8164399000 has 64 divisors (see below), whose sum is σ = 19763546400. Its totient is φ = 3153136000.

The previous prime is 8164398959. The next prime is 8164399013. The reversal of 8164399000 is 9934618.

It is a super-2 number, since 2×8164399000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111766 + ... + 169765.

Almost surely, 2^8164399000 is an apocalyptic number.

It is an amenable number.

8164399000 is an abundant number, since it is smaller than the sum of its proper divisors (11599147400).

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

8164399000 is a wasteful number, since it uses less digits than its factorization.

8164399000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281581 (or 281567 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 8164399000 is about 90357.0639186555. The cubic root of 8164399000 is about 2013.6071297258.

The spelling of 8164399000 in words is "eight billion, one hundred sixty-four million, three hundred ninety-nine thousand".