66393932 has 12 divisors (see below), whose sum is σ = 126752136. Its totient is φ = 30179040.

The previous prime is 66393931. The next prime is 66393937. The reversal of 66393932 is 23939366.

It is a self number, because there is not a number n which added to its sum of digits gives 66393932.

It is not an unprimeable number, because it can be changed into a prime (66393931) 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, 754433 + ... + 754520.

It is an arithmetic number, because the mean of its divisors is an integer number (10562678).

Almost surely, 2^66393932 is an apocalyptic number.

It is an amenable number.

66393932 is a deficient number, since it is larger than the sum of its proper divisors (60358204).

66393932 is a wasteful number, since it uses less digits than its factorization.

66393932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508968 (or 1508966 counting only the distinct ones).

The product of its digits is 157464, while the sum is 41.

The square root of 66393932 is about 8148.2471734723. The cubic root of 66393932 is about 404.9264348423.

The spelling of 66393932 in words is "sixty-six million, three hundred ninety-three thousand, nine hundred thirty-two".