662320824771 has 4 divisors (see below), whose sum is σ = 883094433032. Its totient is φ = 441547216512.

The previous prime is 662320824757. The next prime is 662320824773. The reversal of 662320824771 is 177428023266.

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

It is not a de Polignac number, because 662320824771 - 2²⁵ = 662287270339 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 662320824771.

It is not an unprimeable number, because it can be changed into a prime (662320824773) by changing a digit.

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, 110386804126 + ... + 110386804131.

It is an arithmetic number, because the mean of its divisors is an integer number (220773608258).

Almost surely, 2^662320824771 is an apocalyptic number.

662320824771 is a deficient number, since it is larger than the sum of its proper divisors (220773608261).

662320824771 is a wasteful number, since it uses less digits than its factorization.

662320824771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220773608260.

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 662320824771 in words is "six hundred sixty-two billion, three hundred twenty million, eight hundred twenty-four thousand, seven hundred seventy-one".