662320840271 has 4 divisors (see below), whose sum is σ = 662621487432. Its totient is φ = 662020193112.

The previous prime is 662320840261. The next prime is 662320840297. The reversal of 662320840271 is 172048023266.

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 662320840271 - 2¹⁴ = 662320823887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662320840201) 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, 150320276 + ... + 150324681.

It is an arithmetic number, because the mean of its divisors is an integer number (165655371858).

Almost surely, 2^662320840271 is an apocalyptic number.

662320840271 is a deficient number, since it is larger than the sum of its proper divisors (300647161).

662320840271 is a wasteful number, since it uses less digits than its factorization.

662320840271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300647160.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 662320840271 in words is "six hundred sixty-two billion, three hundred twenty million, eight hundred forty thousand, two hundred seventy-one".