6396009156 has 120 divisors (see below), whose sum is σ = 17504847360. Its totient is φ = 2033942400.

The previous prime is 6396009097. The next prime is 6396009173. The reversal of 6396009156 is 6519006936.

6396009156 is a `hidden beast` number, since 6 + 39 + 600 + 9 + 1 + 5 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 708640 + ... + 717608.

It is an arithmetic number, because the mean of its divisors is an integer number (145873728).

Almost surely, 2^6396009156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6396009156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8752423680).

6396009156 is an abundant number, since it is smaller than the sum of its proper divisors (11108838204).

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

6396009156 is a wasteful number, since it uses less digits than its factorization.

6396009156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9087 (or 9076 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 6396009156 is about 79975.0533353995. The cubic root of 6396009156 is about 1856.2495395163.

The spelling of 6396009156 in words is "six billion, three hundred ninety-six million, nine thousand, one hundred fifty-six".