66704733471 has 8 divisors (see below), whose sum is σ = 88968712624. Its totient is φ = 44455288320.

The previous prime is 66704733451. The next prime is 66704733497. The reversal of 66704733471 is 17433740766.

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

It is not a de Polignac number, because 66704733471 - 2⁷ = 66704733343 is a prime.

It is a super-3 number, since 3×66704733471³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66704733471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66704733451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3622786 + ... + 3641151.

It is an arithmetic number, because the mean of its divisors is an integer number (11121089078).

Almost surely, 2^66704733471 is an apocalyptic number.

66704733471 is a deficient number, since it is larger than the sum of its proper divisors (22263979153).

66704733471 is a wasteful number, since it uses less digits than its factorization.

66704733471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7267001.

The product of its (nonzero) digits is 1778112, while the sum is 48.

The spelling of 66704733471 in words is "sixty-six billion, seven hundred four million, seven hundred thirty-three thousand, four hundred seventy-one".