66342532 has 6 divisors (see below), whose sum is σ = 116099438. Its totient is φ = 33171264.

The previous prime is 66342503. The next prime is 66342533. The reversal of 66342532 is 23524366.

It is a happy number.

66342532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 40373316 + 25969216 = 6354^2 + 5096^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66342494 and 66342503.

It is not an unprimeable number, because it can be changed into a prime (66342533) 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 as a sum of consecutive naturals, namely, 8292813 + ... + 8292820.

Almost surely, 2^66342532 is an apocalyptic number.

It is an amenable number.

66342532 is a deficient number, since it is larger than the sum of its proper divisors (49756906).

66342532 is a wasteful number, since it uses less digits than its factorization.

66342532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16585637 (or 16585635 counting only the distinct ones).

The product of its digits is 25920, while the sum is 31.

The square root of 66342532 is about 8145.0925102174. The cubic root of 66342532 is about 404.8219142864.

Adding to 66342532 its reverse (23524366), we get a palindrome (89866898).

The spelling of 66342532 in words is "sixty-six million, three hundred forty-two thousand, five hundred thirty-two".