216040452845 has 16 divisors (see below), whose sum is σ = 296291809920. Its totient is φ = 148138144704.

The previous prime is 216040452833. The next prime is 216040452851. The reversal of 216040452845 is 548254040612.

216040452845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 216040452845 - 2¹⁴ = 216040436461 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2113526 + ... + 2213384.

It is an arithmetic number, because the mean of its divisors is an integer number (18518238120).

Almost surely, 2^216040452845 is an apocalyptic number.

It is an amenable number.

216040452845 is a deficient number, since it is larger than the sum of its proper divisors (80251357075).

216040452845 is an equidigital number, since it uses as much as digits as its factorization.

216040452845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161684.

The product of its (nonzero) digits is 307200, while the sum is 41.

The spelling of 216040452845 in words is "two hundred sixteen billion, forty million, four hundred fifty-two thousand, eight hundred forty-five".