216315542976 has 56 divisors (see below), whose sum is σ = 616360640784. Its totient is φ = 66558627840.

The previous prime is 216315542897. The next prime is 216315542977. The reversal of 216315542976 is 679245513612.

216315542976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216315542977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43329945 + ... + 43334936.

It is an arithmetic number, because the mean of its divisors is an integer number (11006440014).

Almost surely, 2^216315542976 is an apocalyptic number.

216315542976 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

216315542976 is an abundant number, since it is smaller than the sum of its proper divisors (400045097808).

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

216315542976 is a wasteful number, since it uses less digits than its factorization.

216315542976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86664909 (or 86664899 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 51.

The spelling of 216315542976 in words is "two hundred sixteen billion, three hundred fifteen million, five hundred forty-two thousand, nine hundred seventy-six".