6156561168 has 100 divisors (see below), whose sum is σ = 17846357760. Its totient is φ = 2049022656.

The previous prime is 6156561167. The next prime is 6156561181. The reversal of 6156561168 is 8611656516.

It is not an unprimeable number, because it can be changed into a prime (6156561167) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 928521 + ... + 935127.

Almost surely, 2^6156561168 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 6156561168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8923178880).

6156561168 is an abundant number, since it is smaller than the sum of its proper divisors (11689796592).

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

6156561168 is a wasteful number, since it uses less digits than its factorization.

6156561168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7346 (or 7331 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 6156561168 is about 78463.7570346972. The cubic root of 6156561168 is about 1832.7901109987.

The spelling of 6156561168 in words is "six billion, one hundred fifty-six million, five hundred sixty-one thousand, one hundred sixty-eight".