2669168857 has 2 divisors, whose sum is σ = 2669168858. Its totient is φ = 2669168856.

The previous prime is 2669168833. The next prime is 2669168899. The reversal of 2669168857 is 7588619662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2261573136 + 407595721 = 47556^2 + 20189^2 .

It is a cyclic number.

It is not a de Polignac number, because 2669168857 - 2¹¹ = 2669166809 is a prime.

It is not a weakly prime, because it can be changed into another prime (2669168807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1334584428 + 1334584429.

It is an arithmetic number, because the mean of its divisors is an integer number (1334584429).

Almost surely, 2^2669168857 is an apocalyptic number.

It is an amenable number.

2669168857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2669168857 is an equidigital number, since it uses as much as digits as its factorization.

2669168857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 58.

The square root of 2669168857 is about 51663.9996225612. Note that the first 3 decimals coincide. The cubic root of 2669168857 is about 1387.1561435820.

The spelling of 2669168857 in words is "two billion, six hundred sixty-nine million, one hundred sixty-eight thousand, eight hundred fifty-seven".