216019206504 has 96 divisors (see below), whose sum is σ = 606836149920. Its totient is φ = 71992691136.

The previous prime is 216019206503. The next prime is 216019206509. The reversal of 216019206504 is 405602910612.

216019206504 is a `hidden beast` number, since 2 + 1 + 60 + 1 + 92 + 0 + 6 + 504 = 666.

216019206504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (216019206503) 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 23 ways as a sum of consecutive naturals, for example, 18806347 + ... + 18817829.

It is an arithmetic number, because the mean of its divisors is an integer number (6321209895).

Almost surely, 2^216019206504 is an apocalyptic number.

216019206504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

216019206504 is an abundant number, since it is smaller than the sum of its proper divisors (390816943416).

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

216019206504 is a wasteful number, since it uses less digits than its factorization.

216019206504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21181 (or 21165 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 216019206504 in words is "two hundred sixteen billion, nineteen million, two hundred six thousand, five hundred four".