320215136570803 has 4 divisors (see below), whose sum is σ = 321651078887488. Its totient is φ = 318779194254120.

The previous prime is 320215136570767. The next prime is 320215136570837. The reversal of 320215136570803 is 308075631512023.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320215136570803 - 2⁹ = 320215136570291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320215136570843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717971158008 + ... + 717971158453.

It is an arithmetic number, because the mean of its divisors is an integer number (80412769721872).

Almost surely, 2^{320215136570803} is an apocalyptic number.

320215136570803 is a deficient number, since it is larger than the sum of its proper divisors (1435942316685).

320215136570803 is a wasteful number, since it uses less digits than its factorization.

320215136570803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435942316684.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 320215136570803 in words is "three hundred twenty trillion, two hundred fifteen billion, one hundred thirty-six million, five hundred seventy thousand, eight hundred three".