6215934816 has 720 divisors, whose sum is σ = 24071360544. Its totient is φ = 1531809792.

The previous prime is 6215934811. The next prime is 6215934827. The reversal of 6215934816 is 6184395126.

6215934816 is a `hidden beast` number, since 6 + 2 + 1 + 593 + 48 + 16 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6215934811) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 85149756 + ... + 85149828.

Almost surely, 2^6215934816 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 6215934816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12035680272).

6215934816 is an abundant number, since it is smaller than the sum of its proper divisors (17855425728).

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

6215934816 is a wasteful number, since it uses less digits than its factorization.

6215934816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 117 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 6215934816 is about 78841.1999908677. The cubic root of 6215934816 is about 1838.6630584309.

The spelling of 6215934816 in words is "six billion, two hundred fifteen million, nine hundred thirty-four thousand, eight hundred sixteen".