216388872586515 has 32 divisors (see below), whose sum is σ = 352403289686016. Its totient is φ = 113365028649600.

The previous prime is 216388872586493. The next prime is 216388872586517. The reversal of 216388872586515 is 515685278883612.

216388872586515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216388872586515 - 2¹³ = 216388872578323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216388872586517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 562134127 + ... + 562518936.

It is an arithmetic number, because the mean of its divisors is an integer number (11012602802688).

Almost surely, 2^{216388872586515} is an apocalyptic number.

216388872586515 is a deficient number, since it is larger than the sum of its proper divisors (136014417099501).

216388872586515 is a wasteful number, since it uses less digits than its factorization.

216388872586515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124653299.

The product of its digits is 1548288000, while the sum is 75.

The spelling of 216388872586515 in words is "two hundred sixteen trillion, three hundred eighty-eight billion, eight hundred seventy-two million, five hundred eighty-six thousand, five hundred fifteen".