2169216607 has 4 divisors (see below), whose sum is σ = 2182206096. Its totient is φ = 2156227120.

The previous prime is 2169216601. The next prime is 2169216613. The reversal of 2169216607 is 7066129612.

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

It is an interprime number because it is at equal distance from previous prime (2169216601) and next prime (2169216613).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2169216607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2169216607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2169216601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6494494 + ... + 6494827.

It is an arithmetic number, because the mean of its divisors is an integer number (545551524).

Almost surely, 2^2169216607 is an apocalyptic number.

2169216607 is a deficient number, since it is larger than the sum of its proper divisors (12989489).

2169216607 is a wasteful number, since it uses less digits than its factorization.

2169216607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12989488.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 2169216607 is about 46574.8495112974. The cubic root of 2169216607 is about 1294.4967771930.

The spelling of 2169216607 in words is "two billion, one hundred sixty-nine million, two hundred sixteen thousand, six hundred seven".