3466666321 has 4 divisors (see below), whose sum is σ = 3547286512. Its totient is φ = 3386046132.

The previous prime is 3466666309. The next prime is 3466666339. The reversal of 3466666321 is 1236666643.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1236666643 = 331 ⋅3736153.

It is a cyclic number.

It is not a de Polignac number, because 3466666321 - 2²¹ = 3464569169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 80620147 = 3466666321 / (3 + 4 + 6 + 6 + 6 + 6 + 6 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3466666381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40310031 + ... + 40310116.

It is an arithmetic number, because the mean of its divisors is an integer number (886821628).

Almost surely, 2^3466666321 is an apocalyptic number.

It is an amenable number.

3466666321 is a deficient number, since it is larger than the sum of its proper divisors (80620191).

3466666321 is an equidigital number, since it uses as much as digits as its factorization.

3466666321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80620190.

The product of its digits is 559872, while the sum is 43.

The square root of 3466666321 is about 58878.4028400907. The cubic root of 3466666321 is about 1513.4590701298.

The spelling of 3466666321 in words is "three billion, four hundred sixty-six million, six hundred sixty-six thousand, three hundred twenty-one".