66043332 has 36 divisors (see below), whose sum is σ = 167399596. Its totient is φ = 21954240.

The previous prime is 66043331. The next prime is 66043337. The reversal of 66043332 is 23334066.

It can be written as a sum of positive squares in 2 ways, for example, as 34503876 + 31539456 = 5874^2 + 5616^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 66043296 and 66043305.

It is not an unprimeable number, because it can be changed into a prime (66043331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11982 + ... + 16602.

Almost surely, 2^66043332 is an apocalyptic number.

It is an amenable number.

66043332 is an abundant number, since it is smaller than the sum of its proper divisors (101356264).

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

66043332 is a wasteful number, since it uses less digits than its factorization.

66043332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5028 (or 5023 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

The square root of 66043332 is about 8126.7048672878. The cubic root of 66043332 is about 404.2124246394.

Adding to 66043332 its reverse (23334066), we get a palindrome (89377398).

The spelling of 66043332 in words is "sixty-six million, forty-three thousand, three hundred thirty-two".