6672013321 has 4 divisors (see below), whose sum is σ = 6674525200. Its totient is φ = 6669501444.

The previous prime is 6672013303. The next prime is 6672013333. The reversal of 6672013321 is 1233102766.

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.

It is a cyclic number.

It is not a de Polignac number, because 6672013321 - 2¹³ = 6672005129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6672013301) 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, 1251951 + ... + 1257268.

It is an arithmetic number, because the mean of its divisors is an integer number (1668631300).

Almost surely, 2^6672013321 is an apocalyptic number.

It is an amenable number.

6672013321 is a deficient number, since it is larger than the sum of its proper divisors (2511879).

6672013321 is a wasteful number, since it uses less digits than its factorization.

6672013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511878.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 6672013321 is about 81682.3929681299. The cubic root of 6672013321 is about 1882.5750627525.

The spelling of 6672013321 in words is "six billion, six hundred seventy-two million, thirteen thousand, three hundred twenty-one".