6315520000 has 130 divisors (see below), whose sum is σ = 15788218028. Its totient is φ = 2525184000.

The previous prime is 6315519971. The next prime is 6315520007. The reversal of 6315520000 is 255136.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6315520007) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 2558767 + ... + 2561233.

Almost surely, 2^6315520000 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 6315520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7894109014).

6315520000 is an abundant number, since it is smaller than the sum of its proper divisors (9472698028).

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

6315520000 is an frugal number, since it uses more digits than its factorization.

6315520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511 (or 2474 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 6315520000 is about 79470.2460044009. The cubic root of 6315520000 is about 1848.4301266990.

Adding to 6315520000 its reverse (255136), we get a palindrome (6315775136).

The spelling of 6315520000 in words is "six billion, three hundred fifteen million, five hundred twenty thousand".