6166488465 has 24 divisors (see below), whose sum is σ = 10722322728. Its totient is φ = 3278411520.

The previous prime is 6166488389. The next prime is 6166488469. The reversal of 6166488465 is 5648846616.

6166488465 is a `hidden beast` number, since 61 + 66 + 488 + 46 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 546437376 + 5620051089 = 23376^2 + 74967^2 .

It is not a de Polignac number, because 6166488465 - 2¹² = 6166484369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6166488469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201876 + ... + 230405.

It is an arithmetic number, because the mean of its divisors is an integer number (446763447).

Almost surely, 2^6166488465 is an apocalyptic number.

It is an amenable number.

6166488465 is a deficient number, since it is larger than the sum of its proper divisors (4555834263).

6166488465 is a wasteful number, since it uses less digits than its factorization.

6166488465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432609 (or 432606 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The square root of 6166488465 is about 78526.9919518123. The cubic root of 6166488465 is about 1833.7746910023.

The spelling of 6166488465 in words is "six billion, one hundred sixty-six million, four hundred eighty-eight thousand, four hundred sixty-five".