6211651216 has 80 divisors (see below), whose sum is σ = 13523241600. Its totient is φ = 2748483584.

The previous prime is 6211651211. The next prime is 6211651219. The reversal of 6211651216 is 6121561126.

It is a super-2 number, since 2×6211651216² = 77169221658468557312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6211651211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360690 + ... + 377518.

It is an arithmetic number, because the mean of its divisors is an integer number (169040520).

Almost surely, 2^6211651216 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 6211651216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6761620800).

6211651216 is an abundant number, since it is smaller than the sum of its proper divisors (7311590384).

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

6211651216 is a wasteful number, since it uses less digits than its factorization.

6211651216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16936 (or 16930 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 6211651216 is about 78814.0293095081. The cubic root of 6211651216 is about 1838.2406008158.

The spelling of 6211651216 in words is "six billion, two hundred eleven million, six hundred fifty-one thousand, two hundred sixteen".