102166666625 has 16 divisors (see below), whose sum is σ = 127534712448. Its totient is φ = 81713646000.

The previous prime is 102166666577. The next prime is 102166666663. The reversal of 102166666625 is 526666661201.

It is not a de Polignac number, because 102166666625 - 2⁸ = 102166666369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102166666625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434060 + ... + 626690.

It is an arithmetic number, because the mean of its divisors is an integer number (7970919528).

Almost surely, 2^102166666625 is an apocalyptic number.

It is an amenable number.

102166666625 is a deficient number, since it is larger than the sum of its proper divisors (25368045823).

102166666625 is an equidigital number, since it uses as much as digits as its factorization.

102166666625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196889 (or 196879 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 102166666625 in words is "one hundred two billion, one hundred sixty-six million, six hundred sixty-six thousand, six hundred twenty-five".