66102 has 16 divisors (see below), whose sum is σ = 138240. Its totient is φ = 21032.

The previous prime is 66089. The next prime is 66103. The reversal of 66102 is 20166.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66103) by changing a digit.

66102 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102 + ... + 377.

It is an arithmetic number, because the mean of its divisors is an integer number (8640).

2⁶⁶¹⁰² is an apocalyptic number.

66102 is an abundant number, since it is smaller than the sum of its proper divisors (72138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69120).

66102 is a wasteful number, since it uses less digits than its factorization.

66102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 66102 is about 257.1030921634. The cubic root of 66102 is about 40.4332079999.

Adding to 66102 its reverse (20166), we get a palindrome (86268).

The spelling of 66102 in words is "sixty-six thousand, one hundred two".