216342352554 has 8 divisors (see below), whose sum is σ = 432684705120. Its totient is φ = 72114117516.

The previous prime is 216342352553. The next prime is 216342352561. The reversal of 216342352554 is 455253243612.

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

216342352554 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (216342352553) by changing a digit.

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, 18028529374 + ... + 18028529385.

It is an arithmetic number, because the mean of its divisors is an integer number (54085588140).

Almost surely, 2^216342352554 is an apocalyptic number.

216342352554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

216342352554 is a wasteful number, since it uses less digits than its factorization.

216342352554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36057058764.

The product of its digits is 864000, while the sum is 42.

The spelling of 216342352554 in words is "two hundred sixteen billion, three hundred forty-two million, three hundred fifty-two thousand, five hundred fifty-four".