2145580688267 has 2 divisors, whose sum is σ = 2145580688268. Its totient is φ = 2145580688266.

The previous prime is 2145580688261. The next prime is 2145580688323. The reversal of 2145580688267 is 7628860855412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2145580688267 - 2¹⁸ = 2145580426123 is a prime.

It is not a weakly prime, because it can be changed into another prime (2145580688261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072790344133 + 1072790344134.

It is an arithmetic number, because the mean of its divisors is an integer number (1072790344134).

Almost surely, 2^{2145580688267} is an apocalyptic number.

2145580688267 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145580688267 is an equidigital number, since it uses as much as digits as its factorization.

2145580688267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51609600, while the sum is 62.

The spelling of 2145580688267 in words is "two trillion, one hundred forty-five billion, five hundred eighty million, six hundred eighty-eight thousand, two hundred sixty-seven".