66852497783 has 2 divisors, whose sum is σ = 66852497784. Its totient is φ = 66852497782.

The previous prime is 66852497741. The next prime is 66852497809. The reversal of 66852497783 is 38779425866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66852497783 - 2⁸ = 66852497527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66852497683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33426248891 + 33426248892.

It is an arithmetic number, because the mean of its divisors is an integer number (33426248892).

Almost surely, 2^66852497783 is an apocalyptic number.

66852497783 is a deficient number, since it is larger than the sum of its proper divisors (1).

66852497783 is an equidigital number, since it uses as much as digits as its factorization.

66852497783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 121927680, while the sum is 65.

The spelling of 66852497783 in words is "sixty-six billion, eight hundred fifty-two million, four hundred ninety-seven thousand, seven hundred eighty-three".