66727345 has 8 divisors (see below), whose sum is σ = 82656000. Its totient is φ = 51659760.

The previous prime is 66727343. The next prime is 66727379. The reversal of 66727345 is 54372766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66727345 - 2¹ = 66727343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66727298 and 66727307.

It is not an unprimeable number, because it can be changed into a prime (66727343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215095 + ... + 215404.

It is an arithmetic number, because the mean of its divisors is an integer number (10332000).

Almost surely, 2^66727345 is an apocalyptic number.

It is an amenable number.

66727345 is a deficient number, since it is larger than the sum of its proper divisors (15928655).

66727345 is a wasteful number, since it uses less digits than its factorization.

66727345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430535.

The product of its digits is 211680, while the sum is 40.

The square root of 66727345 is about 8168.6807380384. The cubic root of 66727345 is about 405.6031150274.

The spelling of 66727345 in words is "sixty-six million, seven hundred twenty-seven thousand, three hundred forty-five".