102116666 has 16 divisors (see below), whose sum is σ = 158542080. Its totient is φ = 49278240.

The previous prime is 102116647. The next prime is 102116683. The reversal of 102116666 is 666611201.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23345 + ... + 27371.

It is an arithmetic number, because the mean of its divisors is an integer number (9908880).

Almost surely, 2^102116666 is an apocalyptic number.

102116666 is a deficient number, since it is larger than the sum of its proper divisors (56425414).

102116666 is a wasteful number, since it uses less digits than its factorization.

102116666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4469.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 102116666 is about 10105.2791153931. The cubic root of 102116666 is about 467.4109428385.

Adding to 102116666 its reverse (666611201), we get a palindrome (768727867).

The spelling of 102116666 in words is "one hundred two million, one hundred sixteen thousand, six hundred sixty-six".