6215346064 has 40 divisors (see below), whose sum is σ = 12775934520. Its totient is φ = 2919057408.

The previous prime is 6215346043. The next prime is 6215346077. The reversal of 6215346064 is 4606435126.

It can be written as a sum of positive squares in 4 ways, for example, as 2735290000 + 3480056064 = 52300^2 + 58992^2 .

It is an unprimeable number.

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, 116002 + ... + 160894.

It is an arithmetic number, because the mean of its divisors is an integer number (319398363).

Almost surely, 2^6215346064 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 6215346064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6387967260).

6215346064 is an abundant number, since it is smaller than the sum of its proper divisors (6560588456).

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

6215346064 is a wasteful number, since it uses less digits than its factorization.

6215346064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45427 (or 45421 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 6215346064 is about 78837.4661185911. The cubic root of 6215346064 is about 1838.6050059811.

The spelling of 6215346064 in words is "six billion, two hundred fifteen million, three hundred forty-six thousand, sixty-four".