66852794867 has 2 divisors, whose sum is σ = 66852794868. Its totient is φ = 66852794866.

The previous prime is 66852794857. The next prime is 66852794927. The reversal of 66852794867 is 76849725866.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66852794867 - 2¹⁶ = 66852729331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66852794797 and 66852794806.

It is not a weakly prime, because it can be changed into another prime (66852794857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33426397433 + 33426397434.

It is an arithmetic number, because the mean of its divisors is an integer number (33426397434).

Almost surely, 2^66852794867 is an apocalyptic number.

66852794867 is a deficient number, since it is larger than the sum of its proper divisors (1).

66852794867 is an equidigital number, since it uses as much as digits as its factorization.

66852794867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 243855360, while the sum is 68.

The spelling of 66852794867 in words is "sixty-six billion, eight hundred fifty-two million, seven hundred ninety-four thousand, eight hundred sixty-seven".