2669168897 has 8 divisors (see below), whose sum is σ = 2676214440. Its totient is φ = 2662133760.

The previous prime is 2669168857. The next prime is 2669168899. The reversal of 2669168897 is 7988619662.

It is a Cunningham number, because it is equal to 51664²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 108910096 + 2560258801 = 10436^2 + 50599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2669168897 - 2⁶ = 2669168833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2669168899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800129 + ... + 803457.

It is an arithmetic number, because the mean of its divisors is an integer number (334526805).

Almost surely, 2^2669168897 is an apocalyptic number.

It is an amenable number.

2669168897 is a deficient number, since it is larger than the sum of its proper divisors (7045543).

2669168897 is a wasteful number, since it uses less digits than its factorization.

2669168897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5203.

The product of its digits is 15676416, while the sum is 62.

The square root of 2669168897 is about 51664.0000096779. Note that the first 5 decimals coincide. The cubic root of 2669168897 is about 1387.1561505112.

The spelling of 2669168897 in words is "two billion, six hundred sixty-nine million, one hundred sixty-eight thousand, eight hundred ninety-seven".