2166341776 has 40 divisors (see below), whose sum is σ = 4263637824. Its totient is φ = 1066101120.

The previous prime is 2166341761. The next prime is 2166341777. The reversal of 2166341776 is 6771436612.

It is not an unprimeable number, because it can be changed into a prime (2166341777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 876895 + ... + 879361.

Almost surely, 2^2166341776 is an apocalyptic number.

It is an amenable number.

2166341776 is a deficient number, since it is larger than the sum of its proper divisors (2097296048).

2166341776 is a wasteful number, since it uses less digits than its factorization.

2166341776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319 (or 3313 counting only the distinct ones).

The product of its digits is 254016, while the sum is 43.

The square root of 2166341776 is about 46543.9767961441. The cubic root of 2166341776 is about 1293.9246651746.

The spelling of 2166341776 in words is "two billion, one hundred sixty-six million, three hundred forty-one thousand, seven hundred seventy-six".