216543026046 has 16 divisors (see below), whose sum is σ = 433200700800. Its totient is φ = 72161900568.

The previous prime is 216543026041. The next prime is 216543026123. The reversal of 216543026046 is 640620345612.

It is a junction number, because it is equal to n+sod(n) for n = 216543025995 and 216543026013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216543026041) 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 7 ways as a sum of consecutive naturals, for example, 4752466 + ... + 4797813.

It is an arithmetic number, because the mean of its divisors is an integer number (27075043800).

Almost surely, 2^216543026046 is an apocalyptic number.

216543026046 is an abundant number, since it is smaller than the sum of its proper divisors (216657674754).

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

216543026046 is a wasteful number, since it uses less digits than its factorization.

216543026046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9554063.

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 216543026046 in words is "two hundred sixteen billion, five hundred forty-three million, twenty-six thousand, forty-six".