6165996720 has 320 divisors, whose sum is σ = 21835935744. Its totient is φ = 1428295680.

The previous prime is 6165996719. The next prime is 6165996743. The reversal of 6165996720 is 276995616.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3577779 + ... + 3579501.

Almost surely, 2^6165996720 is an apocalyptic number.

6165996720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6165996720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10917967872).

6165996720 is an abundant number, since it is smaller than the sum of its proper divisors (15669939024).

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

6165996720 is a wasteful number, since it uses less digits than its factorization.

6165996720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820 (or 1814 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 51.

The square root of 6165996720 is about 78523.8608322337. The cubic root of 6165996720 is about 1833.7259450798.

The spelling of 6165996720 in words is "six billion, one hundred sixty-five million, nine hundred ninety-six thousand, seven hundred twenty".