320061521514156 has 48 divisors (see below), whose sum is σ = 768365821436640. Its totient is φ = 103630527751680.

The previous prime is 320061521514151. The next prime is 320061521514167. The reversal of 320061521514156 is 651415125160023.

It is not an unprimeable number, because it can be changed into a prime (320061521514151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1420261891 + ... + 1420487226.

It is an arithmetic number, because the mean of its divisors is an integer number (16007621279930).

Almost surely, 2^{320061521514156} is an apocalyptic number.

It is an amenable number.

320061521514156 is an abundant number, since it is smaller than the sum of its proper divisors (448304299922484).

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

320061521514156 is a wasteful number, since it uses less digits than its factorization.

320061521514156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840749394 (or 2840749392 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 42.

Adding to 320061521514156 its reverse (651415125160023), we get a palindrome (971476646674179).

The spelling of 320061521514156 in words is "three hundred twenty trillion, sixty-one billion, five hundred twenty-one million, five hundred fourteen thousand, one hundred fifty-six".