216339562 has 4 divisors (see below), whose sum is σ = 324509346. Its totient is φ = 108169780.

The previous prime is 216339521. The next prime is 216339619. The reversal of 216339562 is 265933612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 212838921 + 3500641 = 14589^2 + 1871^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54084889 + ... + 54084892.

Almost surely, 2^216339562 is an apocalyptic number.

216339562 is a deficient number, since it is larger than the sum of its proper divisors (108169784).

216339562 is a wasteful number, since it uses less digits than its factorization.

216339562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108169783.

The product of its digits is 58320, while the sum is 37.

The square root of 216339562 is about 14708.4860539758. The cubic root of 216339562 is about 600.3142446477.

The spelling of 216339562 in words is "two hundred sixteen million, three hundred thirty-nine thousand, five hundred sixty-two".