216206210542 has 8 divisors (see below), whose sum is σ = 370639218096. Its totient is φ = 92659804512.

The previous prime is 216206210531. The next prime is 216206210543. The reversal of 216206210542 is 245012602612.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216206210543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7721650363 + ... + 7721650390.

It is an arithmetic number, because the mean of its divisors is an integer number (46329902262).

Almost surely, 2^216206210542 is an apocalyptic number.

216206210542 is a deficient number, since it is larger than the sum of its proper divisors (154433007554).

216206210542 is a wasteful number, since it uses less digits than its factorization.

216206210542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15443300762.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 216206210542 in words is "two hundred sixteen billion, two hundred six million, two hundred ten thousand, five hundred forty-two".