6245121216 has 56 divisors (see below), whose sum is σ = 16585112880. Its totient is φ = 2073951232.

The previous prime is 6245121209. The next prime is 6245121217. The reversal of 6245121216 is 6121215426.

It is not an unprimeable number, because it can be changed into a prime (6245121217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8811 + ... + 112106.

It is an arithmetic number, because the mean of its divisors is an integer number (296162730).

Almost surely, 2^6245121216 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 6245121216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8292556440).

6245121216 is an abundant number, since it is smaller than the sum of its proper divisors (10339991664).

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

6245121216 is a wasteful number, since it uses less digits than its factorization.

6245121216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121201 (or 121191 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 6245121216 is about 79026.0793409366. The cubic root of 6245121216 is about 1841.5363287143.

The spelling of 6245121216 in words is "six billion, two hundred forty-five million, one hundred twenty-one thousand, two hundred sixteen".