320606002891 has 8 divisors (see below), whose sum is σ = 326900289600. Its totient is φ = 314340392520.

The previous prime is 320606002877. The next prime is 320606002903. The reversal of 320606002891 is 198200606023.

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

It is a cyclic number.

It is not a de Polignac number, because 320606002891 - 2¹⁷ = 320605871819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320606002891.

It is not an unprimeable number, because it can be changed into a prime (320606002991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7146505 + ... + 7191226.

It is an arithmetic number, because the mean of its divisors is an integer number (40862536200).

Almost surely, 2^320606002891 is an apocalyptic number.

320606002891 is a deficient number, since it is larger than the sum of its proper divisors (6294286709).

320606002891 is a wasteful number, since it uses less digits than its factorization.

320606002891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14338169.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 320606002891 in words is "three hundred twenty billion, six hundred six million, two thousand, eight hundred ninety-one".