215645352683 has 2 divisors, whose sum is σ = 215645352684. Its totient is φ = 215645352682.

The previous prime is 215645352649. The next prime is 215645352697. The reversal of 215645352683 is 386253546512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215645352683 - 2¹⁰ = 215645351659 is a prime.

It is not a weakly prime, because it can be changed into another prime (215645352613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107822676341 + 107822676342.

It is an arithmetic number, because the mean of its divisors is an integer number (107822676342).

Almost surely, 2^215645352683 is an apocalyptic number.

215645352683 is a deficient number, since it is larger than the sum of its proper divisors (1).

215645352683 is an equidigital number, since it uses as much as digits as its factorization.

215645352683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184000, while the sum is 50.

The spelling of 215645352683 in words is "two hundred fifteen billion, six hundred forty-five million, three hundred fifty-two thousand, six hundred eighty-three".