66946353 has 8 divisors (see below), whose sum is σ = 93142848. Its totient is φ = 42690384.

The previous prime is 66946331. The next prime is 66946379. The reversal of 66946353 is 35364966.

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

It is not a de Polignac number, because 66946353 - 2⁹ = 66945841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66946553) 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, 485050 + ... + 485187.

It is an arithmetic number, because the mean of its divisors is an integer number (11642856).

Almost surely, 2^66946353 is an apocalyptic number.

It is an amenable number.

66946353 is a deficient number, since it is larger than the sum of its proper divisors (26196495).

66946353 is a wasteful number, since it uses less digits than its factorization.

66946353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970263.

The product of its digits is 349920, while the sum is 42.

The square root of 66946353 is about 8182.0751035419. The cubic root of 66946353 is about 406.0463781780.

The spelling of 66946353 in words is "sixty-six million, nine hundred forty-six thousand, three hundred fifty-three".