6211715328 has 648 divisors, whose sum is σ = 23107436352. Its totient is φ = 1569964032.

The previous prime is 6211715327. The next prime is 6211715347. The reversal of 6211715328 is 8235171126.

6211715328 is a `hidden beast` number, since 6 + 2 + 117 + 1 + 532 + 8 = 666.

It is a super-2 number, since 2×6211715328² = 77170814632220295168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6211715292 and 6211715301.

It is not an unprimeable number, because it can be changed into a prime (6211715327) 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 71 ways as a sum of consecutive naturals, for example, 117202150 + ... + 117202202.

It is an arithmetic number, because the mean of its divisors is an integer number (35659624).

Almost surely, 2^6211715328 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 6211715328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11553718176).

6211715328 is an abundant number, since it is smaller than the sum of its proper divisors (16895721024).

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

6211715328 is a wasteful number, since it uses less digits than its factorization.

6211715328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 121 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 6211715328 is about 78814.4360380762. The cubic root of 6211715328 is about 1838.2469251072.

The spelling of 6211715328 in words is "six billion, two hundred eleven million, seven hundred fifteen thousand, three hundred twenty-eight".