66789662 has 8 divisors (see below), whose sum is σ = 102892296. Its totient is φ = 32492232.

The previous prime is 66789661. The next prime is 66789673. The reversal of 66789662 is 26698766.

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

It is a self number, because there is not a number n which added to its sum of digits gives 66789662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66789661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451208 + ... + 451355.

It is an arithmetic number, because the mean of its divisors is an integer number (12861537).

Almost surely, 2^66789662 is an apocalyptic number.

66789662 is a deficient number, since it is larger than the sum of its proper divisors (36102634).

66789662 is a wasteful number, since it uses less digits than its factorization.

66789662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902602.

The product of its digits is 1306368, while the sum is 50.

The square root of 66789662 is about 8172.4942337086. The cubic root of 66789662 is about 405.7293406647.

The spelling of 66789662 in words is "sixty-six million, seven hundred eighty-nine thousand, six hundred sixty-two".