66704001047 has 8 divisors (see below), whose sum is σ = 67625007744. Its totient is φ = 65783190528.

The previous prime is 66704001041. The next prime is 66704001097. The reversal of 66704001047 is 74010040766.

It is a happy number.

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 66704001047 - 2⁴ = 66704001031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66704000998 and 66704001016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66704001041) 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, 717818 + ... + 805400.

It is an arithmetic number, because the mean of its divisors is an integer number (8453125968).

Almost surely, 2^66704001047 is an apocalyptic number.

66704001047 is a deficient number, since it is larger than the sum of its proper divisors (921006697).

66704001047 is a wasteful number, since it uses less digits than its factorization.

66704001047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98089.

The product of its (nonzero) digits is 28224, while the sum is 35.

The spelling of 66704001047 in words is "sixty-six billion, seven hundred four million, one thousand, forty-seven".