331550216 has 8 divisors (see below), whose sum is σ = 621656670. Its totient is φ = 165775104.

The previous prime is 331550143. The next prime is 331550273. The reversal of 331550216 is 612055133.

It can be written as a sum of positive squares in only one way, i.e., 281904100 + 49646116 = 16790^2 + 7046^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20721881 + ... + 20721896.

Almost surely, 2^331550216 is an apocalyptic number.

It is an amenable number.

331550216 is a deficient number, since it is larger than the sum of its proper divisors (290106454).

331550216 is a wasteful number, since it uses less digits than its factorization.

331550216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41443783 (or 41443779 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 331550216 is about 18208.5204231426. The cubic root of 331550216 is about 692.1227187217.

The spelling of 331550216 in words is "three hundred thirty-one million, five hundred fifty thousand, two hundred sixteen".