2016216465 has 32 divisors (see below), whose sum is σ = 3347536896. Its totient is φ = 1035491520.

The previous prime is 2016216463. The next prime is 2016216467. The reversal of 2016216465 is 5646126102.

It is an interprime number because it is at equal distance from previous prime (2016216463) and next prime (2016216467).

It is not a de Polignac number, because 2016216465 - 2¹ = 2016216463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2016216463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23782 + ... + 67808.

It is an arithmetic number, because the mean of its divisors is an integer number (104610528).

Almost surely, 2^2016216465 is an apocalyptic number.

It is an amenable number.

2016216465 is a deficient number, since it is larger than the sum of its proper divisors (1331320431).

2016216465 is a wasteful number, since it uses less digits than its factorization.

2016216465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44149.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 2016216465 is about 44902.2991059478. The cubic root of 2016216465 is about 1263.3171318939.

The spelling of 2016216465 in words is "two billion, sixteen million, two hundred sixteen thousand, four hundred sixty-five".