6166961669 has 16 divisors (see below), whose sum is σ = 6818563584. Its totient is φ = 5530719600.

The previous prime is 6166961663. The next prime is 6166961683. The reversal of 6166961669 is 9661696616.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6166961669 is a prime.

It is a super-2 number, since 2×6166961669² = 76062832453830531122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6166961663) 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 15 ways as a sum of consecutive naturals, for example, 673814 + ... + 682904.

It is an arithmetic number, because the mean of its divisors is an integer number (426160224).

Almost surely, 2^6166961669 is an apocalyptic number.

It is an amenable number.

6166961669 is a deficient number, since it is larger than the sum of its proper divisors (651601915).

6166961669 is a wasteful number, since it uses less digits than its factorization.

6166961669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9928.

The product of its digits is 3779136, while the sum is 56.

The square root of 6166961669 is about 78530.0048962179. The cubic root of 6166961669 is about 1833.8215965374.

The spelling of 6166961669 in words is "six billion, one hundred sixty-six million, nine hundred sixty-one thousand, six hundred sixty-nine".