66715433 has 8 divisors (see below), whose sum is σ = 69720000. Its totient is φ = 63719568.

The previous prime is 66715427. The next prime is 66715447. The reversal of 66715433 is 33451766.

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

It is not a de Polignac number, because 66715433 - 2⁴ = 66715417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66715393 and 66715402.

It is not an unprimeable number, because it can be changed into a prime (66711433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17318 + ... + 20816.

It is an arithmetic number, because the mean of its divisors is an integer number (8715000).

Almost surely, 2^66715433 is an apocalyptic number.

It is an amenable number.

66715433 is a deficient number, since it is larger than the sum of its proper divisors (3004567).

66715433 is a wasteful number, since it uses less digits than its factorization.

66715433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4351.

The product of its digits is 45360, while the sum is 35.

The square root of 66715433 is about 8167.9515791905. The cubic root of 66715433 is about 405.5789778373.

The spelling of 66715433 in words is "sixty-six million, seven hundred fifteen thousand, four hundred thirty-three".