66813341474 has 8 divisors (see below), whose sum is σ = 109330922448. Its totient is φ = 30369700660.

The previous prime is 66813341461. The next prime is 66813341513. The reversal of 66813341474 is 47414331866.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1518485012 + ... + 1518485055.

It is an arithmetic number, because the mean of its divisors is an integer number (13666365306).

Almost surely, 2^66813341474 is an apocalyptic number.

66813341474 is a deficient number, since it is larger than the sum of its proper divisors (42517580974).

66813341474 is a wasteful number, since it uses less digits than its factorization.

66813341474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036970080.

The product of its digits is 1161216, while the sum is 47.

The spelling of 66813341474 in words is "sixty-six billion, eight hundred thirteen million, three hundred forty-one thousand, four hundred seventy-four".