2166707667583 has 2 divisors, whose sum is σ = 2166707667584. Its totient is φ = 2166707667582.

The previous prime is 2166707667547. The next prime is 2166707667601. The reversal of 2166707667583 is 3857667076612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2166707667583 - 2²¹ = 2166705570431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2166707667283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1083353833791 + 1083353833792.

It is an arithmetic number, because the mean of its divisors is an integer number (1083353833792).

Almost surely, 2^{2166707667583} is an apocalyptic number.

2166707667583 is a deficient number, since it is larger than the sum of its proper divisors (1).

2166707667583 is an equidigital number, since it uses as much as digits as its factorization.

2166707667583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 106686720, while the sum is 64.

The spelling of 2166707667583 in words is "two trillion, one hundred sixty-six billion, seven hundred seven million, six hundred sixty-seven thousand, five hundred eighty-three".