66606363 has 12 divisors (see below), whose sum is σ = 96325840. Its totient is φ = 44350416.

The previous prime is 66606349. The next prime is 66606373. The reversal of 66606363 is 36360666.

It is not a de Polignac number, because 66606363 - 2⁶ = 66606299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66606313) 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, 4245 + ... + 12297.

Almost surely, 2^66606363 is an apocalyptic number.

66606363 is a deficient number, since it is larger than the sum of its proper divisors (29719477).

66606363 is a wasteful number, since it uses less digits than its factorization.

66606363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8978 (or 8975 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 36.

The square root of 66606363 is about 8161.2721434835. The cubic root of 66606363 is about 405.3578364622.

The spelling of 66606363 in words is "sixty-six million, six hundred six thousand, three hundred sixty-three".