320215221418 has 8 divisors (see below), whose sum is σ = 480326442948. Its totient is φ = 160106407104.

The previous prime is 320215221383. The next prime is 320215221419. The reversal of 320215221418 is 814122512023.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 305872045249 + 14343176169 = 553057^2 + 119763^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 320215221418.

It is not an unprimeable number, because it can be changed into a prime (320215221419) 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, 221071 + ... + 830242.

Almost surely, 2^320215221418 is an apocalyptic number.

320215221418 is a deficient number, since it is larger than the sum of its proper divisors (160111221530).

320215221418 is a wasteful number, since it uses less digits than its factorization.

320215221418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203608.

The product of its (nonzero) digits is 7680, while the sum is 31.

The spelling of 320215221418 in words is "three hundred twenty billion, two hundred fifteen million, two hundred twenty-one thousand, four hundred eighteen".