6165556056 has 480 divisors, whose sum is σ = 20781517680. Its totient is φ = 1692057600.

The previous prime is 6165556051. The next prime is 6165556057. The reversal of 6165556056 is 6506555616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6165556051) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 84459636 + ... + 84459708.

Almost surely, 2^6165556056 is an apocalyptic number.

6165556056 is a gapful number since it is divisible by the number (66) 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 6165556056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10390758840).

6165556056 is an abundant number, since it is smaller than the sum of its proper divisors (14615961624).

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

6165556056 is a wasteful number, since it uses less digits than its factorization.

6165556056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The square root of 6165556056 is about 78521.0548579169. The cubic root of 6165556056 is about 1833.6822605361.

It can be divided in two parts, 61655560 and 56, that added together give a palindrome (61655616).

The spelling of 6165556056 in words is "six billion, one hundred sixty-five million, five hundred fifty-six thousand, fifty-six".