216015505267 has 4 divisors (see below), whose sum is σ = 218618101800. Its totient is φ = 213412908736.

The previous prime is 216015505249. The next prime is 216015505331. The reversal of 216015505267 is 762505510612.

216015505267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216015505267 - 2¹⁵ = 216015472499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216015505067) 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 3 ways as a sum of consecutive naturals, for example, 1301298142 + ... + 1301298307.

It is an arithmetic number, because the mean of its divisors is an integer number (54654525450).

Almost surely, 2^216015505267 is an apocalyptic number.

216015505267 is a deficient number, since it is larger than the sum of its proper divisors (2602596533).

216015505267 is an equidigital number, since it uses as much as digits as its factorization.

216015505267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602596532.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 216015505267 in words is "two hundred sixteen billion, fifteen million, five hundred five thousand, two hundred sixty-seven".