102168656 has 20 divisors (see below), whose sum is σ = 201198804. Its totient is φ = 50246400.

The previous prime is 102168637. The next prime is 102168667. The reversal of 102168656 is 656861201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13808656 + 88360000 = 3716^2 + 9400^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51365 + ... + 53316.

Almost surely, 2^102168656 is an apocalyptic number.

102168656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

102168656 is a deficient number, since it is larger than the sum of its proper divisors (99030148).

102168656 is a wasteful number, since it uses less digits than its factorization.

102168656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104750 (or 104744 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 102168656 is about 10107.8512058696. The cubic root of 102168656 is about 467.4902526874.

The spelling of 102168656 in words is "one hundred two million, one hundred sixty-eight thousand, six hundred fifty-six".