6115566416 has 80 divisors (see below), whose sum is σ = 12822036480. Its totient is φ = 2817386880.

The previous prime is 6115566377. The next prime is 6115566419. The reversal of 6115566416 is 6146655116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6115566419) 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, 2725391 + ... + 2727633.

It is an arithmetic number, because the mean of its divisors is an integer number (160275456).

Almost surely, 2^6115566416 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 6115566416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6411018240).

6115566416 is an abundant number, since it is smaller than the sum of its proper divisors (6706470064).

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

6115566416 is a wasteful number, since it uses less digits than its factorization.

6115566416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544 (or 2538 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The square root of 6115566416 is about 78202.0870309738. The cubic root of 6115566416 is about 1828.7130426178.

The spelling of 6115566416 in words is "six billion, one hundred fifteen million, five hundred sixty-six thousand, four hundred sixteen".