66667332 has 12 divisors (see below), whose sum is σ = 155557136. Its totient is φ = 22222440.

The previous prime is 66667331. The next prime is 66667339. The reversal of 66667332 is 23376666.

66667332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (66667331) 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 in 3 ways as a sum of consecutive naturals, for example, 2777794 + ... + 2777817.

Almost surely, 2^66667332 is an apocalyptic number.

It is an amenable number.

66667332 is an abundant number, since it is smaller than the sum of its proper divisors (88889804).

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

66667332 is a wasteful number, since it uses less digits than its factorization.

66667332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555618 (or 5555616 counting only the distinct ones).

The product of its digits is 163296, while the sum is 39.

The square root of 66667332 is about 8165.0065523550. The cubic root of 66667332 is about 405.4814819310.

The spelling of 66667332 in words is "sixty-six million, six hundred sixty-seven thousand, three hundred thirty-two".