320614400121216 has 64 divisors (see below), whose sum is σ = 864342925769280. Its totient is φ = 105276370180608.

The previous prime is 320614400121203. The next prime is 320614400121277. The reversal of 320614400121216 is 612121004416023.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6230820046 + ... + 6230871501.

It is an arithmetic number, because the mean of its divisors is an integer number (13505358215145).

Almost surely, 2^{320614400121216} is an apocalyptic number.

It is an amenable number.

320614400121216 is an abundant number, since it is smaller than the sum of its proper divisors (543728525648064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320614400121216 is a wasteful number, since it uses less digits than its factorization.

320614400121216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12461691631 (or 12461691619 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

Adding to 320614400121216 its reverse (612121004416023), we get a palindrome (932735404537239).

The spelling of 320614400121216 in words is "three hundred twenty trillion, six hundred fourteen billion, four hundred million, one hundred twenty-one thousand, two hundred sixteen".