66828410089 has 8 divisors (see below), whose sum is σ = 76377123968. Its totient is φ = 57280145760.

The previous prime is 66828410083. The next prime is 66828410093. The reversal of 66828410089 is 98001482866.

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

It is a cyclic number.

It is not a de Polignac number, because 66828410089 - 2⁹ = 66828409577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66828410083) 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, 314044 + ... + 481954.

It is an arithmetic number, because the mean of its divisors is an integer number (9547140496).

Almost surely, 2^66828410089 is an apocalyptic number.

It is an amenable number.

66828410089 is a deficient number, since it is larger than the sum of its proper divisors (9548713879).

66828410089 is a wasteful number, since it uses less digits than its factorization.

66828410089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224775.

The product of its (nonzero) digits is 1327104, while the sum is 52.

The spelling of 66828410089 in words is "sixty-six billion, eight hundred twenty-eight million, four hundred ten thousand, eighty-nine".