2566123067 has 4 divisors (see below), whose sum is σ = 2566415880. Its totient is φ = 2565830256.

The previous prime is 2566123039. The next prime is 2566123097. The reversal of 2566123067 is 7603216652.

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

It is a cyclic number.

It is not a de Polignac number, because 2566123067 - 2¹⁸ = 2565860923 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 2566123067.

It is not an unprimeable number, because it can be changed into a prime (2566123037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132842 + ... + 150927.

It is an arithmetic number, because the mean of its divisors is an integer number (641603970).

Almost surely, 2^2566123067 is an apocalyptic number.

2566123067 is a deficient number, since it is larger than the sum of its proper divisors (292813).

2566123067 is an equidigital number, since it uses as much as digits as its factorization.

2566123067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292812.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 2566123067 is about 50656.9152929785. The cubic root of 2566123067 is about 1369.0705449106.

The spelling of 2566123067 in words is "two billion, five hundred sixty-six million, one hundred twenty-three thousand, sixty-seven".