6111651616 has 72 divisors (see below), whose sum is σ = 14070744576. Its totient is φ = 2605438080.

The previous prime is 6111651499. The next prime is 6111651647. The reversal of 6111651616 is 6161561116.

It is a super-2 number, since 2×6111651616² = 74704570950710822912, which contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 289285 + ... + 309691.

It is an arithmetic number, because the mean of its divisors is an integer number (195427008).

Almost surely, 2^6111651616 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 6111651616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7035372288).

6111651616 is an abundant number, since it is smaller than the sum of its proper divisors (7959092960).

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

6111651616 is a wasteful number, since it uses less digits than its factorization.

6111651616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20622 (or 20607 counting only the distinct ones).

The product of its digits is 6480, while the sum is 34.

The square root of 6111651616 is about 78177.0530015042. The cubic root of 6111651616 is about 1828.3227503992.

The spelling of 6111651616 in words is "six billion, one hundred eleven million, six hundred fifty-one thousand, six hundred sixteen".