6156568161 has 8 divisors (see below), whose sum is σ = 9120841760. Its totient is φ = 4104378756.

The previous prime is 6156568153. The next prime is 6156568189. The reversal of 6156568161 is 1618656516.

6156568161 is a `hidden beast` number, since 6 + 1 + 565 + 6 + 81 + 6 + 1 = 666.

It is not a de Polignac number, because 6156568161 - 2³ = 6156568153 is a prime.

It is a super-3 number, since 3×6156568161³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6156568111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114010495 + ... + 114010548.

It is an arithmetic number, because the mean of its divisors is an integer number (1140105220).

Almost surely, 2^6156568161 is an apocalyptic number.

It is an amenable number.

6156568161 is a deficient number, since it is larger than the sum of its proper divisors (2964273599).

6156568161 is a wasteful number, since it uses less digits than its factorization.

6156568161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228021052 (or 228021046 counting only the distinct ones).

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

The square root of 6156568161 is about 78463.8015966598. The cubic root of 6156568161 is about 1832.7908049302.

The spelling of 6156568161 in words is "six billion, one hundred fifty-six million, five hundred sixty-eight thousand, one hundred sixty-one".