6166651065 has 16 divisors (see below), whose sum is σ = 10133308608. Its totient is φ = 3199991616.

The previous prime is 6166651033. The next prime is 6166651069. The reversal of 6166651065 is 5601566616.

It is not a de Polignac number, because 6166651065 - 2⁵ = 6166651033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6166651069) 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 15 ways as a sum of consecutive naturals, for example, 5554987 + ... + 5556096.

It is an arithmetic number, because the mean of its divisors is an integer number (633331788).

Almost surely, 2^6166651065 is an apocalyptic number.

It is an amenable number.

6166651065 is a deficient number, since it is larger than the sum of its proper divisors (3966657543).

6166651065 is a wasteful number, since it uses less digits than its factorization.

6166651065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111128.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 6166651065 is about 78528.0272577887. The cubic root of 6166651065 is about 1833.7908087191.

It can be divided in two parts, 6166 and 651065, that added together give a triangular number (657231 = T₁₁₄₆).

The spelling of 6166651065 in words is "six billion, one hundred sixty-six million, six hundred fifty-one thousand, sixty-five".