109177315666 has 16 divisors (see below), whose sum is σ = 164096371584. Its totient is φ = 54478628784.

The previous prime is 109177315661. The next prime is 109177315679. The reversal of 109177315666 is 666513771901.

It is not an unprimeable number, because it can be changed into a prime (109177315661) 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, 2175145 + ... + 2224771.

It is an arithmetic number, because the mean of its divisors is an integer number (10256023224).

Almost surely, 2^109177315666 is an apocalyptic number.

109177315666 is a deficient number, since it is larger than the sum of its proper divisors (54919055918).

109177315666 is a wasteful number, since it uses less digits than its factorization.

109177315666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51825.

The product of its (nonzero) digits is 1428840, while the sum is 52.

The spelling of 109177315666 in words is "one hundred nine billion, one hundred seventy-seven million, three hundred fifteen thousand, six hundred sixty-six".