331316400216552 has 32 divisors (see below), whose sum is σ = 828530322043680. Its totient is φ = 110406890538560.

The previous prime is 331316400216551. The next prime is 331316400216569. The reversal of 331316400216552 is 255612004613133.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (331316400216551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1994261058 + ... + 1994427185.

It is an arithmetic number, because the mean of its divisors is an integer number (25891572563865).

Almost surely, 2^{331316400216552} is an apocalyptic number.

It is an amenable number.

331316400216552 is an abundant number, since it is smaller than the sum of its proper divisors (497213921827128).

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

331316400216552 is a wasteful number, since it uses less digits than its factorization.

331316400216552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988691713 (or 3988691709 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

Adding to 331316400216552 its reverse (255612004613133), we get a palindrome (586928404829685).

The spelling of 331316400216552 in words is "three hundred thirty-one trillion, three hundred sixteen billion, four hundred million, two hundred sixteen thousand, five hundred fifty-two".