66102132 has 12 divisors (see below), whose sum is σ = 154238336. Its totient is φ = 22034040.

The previous prime is 66102131. The next prime is 66102143. The reversal of 66102132 is 23120166.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 66102099 and 66102108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66102131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2754244 + ... + 2754267.

Almost surely, 2^66102132 is an apocalyptic number.

It is an amenable number.

66102132 is an abundant number, since it is smaller than the sum of its proper divisors (88136204).

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

66102132 is a wasteful number, since it uses less digits than its factorization.

66102132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5508518 (or 5508516 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 66102132 is about 8130.3217648504. The cubic root of 66102132 is about 404.3323491379.

Adding to 66102132 its reverse (23120166), we get a palindrome (89222298).

The spelling of 66102132 in words is "sixty-six million, one hundred two thousand, one hundred thirty-two".