102166618 has 8 divisors (see below), whose sum is σ = 154278900. Its totient is φ = 50740320.

The previous prime is 102166613. The next prime is 102166619. The reversal of 102166618 is 816661201.

It can be written as a sum of positive squares in 2 ways, for example, as 100661089 + 1505529 = 10033^2 + 1227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 102166618.

It is not an unprimeable number, because it can be changed into a prime (102166613) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 171123 + ... + 171718.

Almost surely, 2^102166618 is an apocalyptic number.

102166618 is a deficient number, since it is larger than the sum of its proper divisors (52112282).

102166618 is a wasteful number, since it uses less digits than its factorization.

102166618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342992.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 102166618 is about 10107.7503926443. The cubic root of 102166618 is about 467.4871442603.

The spelling of 102166618 in words is "one hundred two million, one hundred sixty-six thousand, six hundred eighteen".