216033542642 has 8 divisors (see below), whose sum is σ = 324102355500. Its totient is φ = 107999424144.

The previous prime is 216033542639. The next prime is 216033542653. The reversal of 216033542642 is 246245330612.

It can be written as a sum of positive squares in 2 ways, for example, as 214332887521 + 1700655121 = 462961^2 + 41239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 216033542596 and 216033542605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8658017 + ... + 8682932.

Almost surely, 2^216033542642 is an apocalyptic number.

216033542642 is a deficient number, since it is larger than the sum of its proper divisors (108068812858).

216033542642 is a wasteful number, since it uses less digits than its factorization.

216033542642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17347180.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 216033542642 in words is "two hundred sixteen billion, thirty-three million, five hundred forty-two thousand, six hundred forty-two".