2016216775 has 6 divisors (see below), whose sum is σ = 2500108832. Its totient is φ = 1612973400.

The previous prime is 2016216773. The next prime is 2016216817. The reversal of 2016216775 is 5776126102.

It is not a de Polignac number, because 2016216775 - 2¹ = 2016216773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2016216773) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40324311 + ... + 40324360.

Almost surely, 2^2016216775 is an apocalyptic number.

2016216775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2016216775 is a deficient number, since it is larger than the sum of its proper divisors (483892057).

2016216775 is an equidigital number, since it uses as much as digits as its factorization.

2016216775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80648681 (or 80648676 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 2016216775 is about 44902.3025578867. The cubic root of 2016216775 is about 1263.3171966403.

It can be divided in two parts, 2016 and 216775, that added together give a triangular number (218791 = T₆₆₁).

The spelling of 2016216775 in words is "two billion, sixteen million, two hundred sixteen thousand, seven hundred seventy-five".