216338148915 has 128 divisors (see below), whose sum is σ = 413906239488. Its totient is φ = 94411837440.

The previous prime is 216338148907. The next prime is 216338148937. The reversal of 216338148915 is 519841833612.

216338148915 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 216338148915 - 2³ = 216338148907 is a prime.

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 127 ways as a sum of consecutive naturals, for example, 115873812 + ... + 115875678.

It is an arithmetic number, because the mean of its divisors is an integer number (3233642496).

Almost surely, 2^216338148915 is an apocalyptic number.

216338148915 is a deficient number, since it is larger than the sum of its proper divisors (197568090573).

216338148915 is a wasteful number, since it uses less digits than its factorization.

216338148915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377.

The product of its digits is 1244160, while the sum is 51.

The spelling of 216338148915 in words is "two hundred sixteen billion, three hundred thirty-eight million, one hundred forty-eight thousand, nine hundred fifteen".