856666552283 has 2 divisors, whose sum is σ = 856666552284. Its totient is φ = 856666552282.

The previous prime is 856666552229. The next prime is 856666552321. The reversal of 856666552283 is 382255666658.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 856666552283 - 2²² = 856662357979 is a prime.

It is a super-3 number, since 3×856666552283³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (856666552223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428333276141 + 428333276142.

It is an arithmetic number, because the mean of its divisors is an integer number (428333276142).

Almost surely, 2^856666552283 is an apocalyptic number.

856666552283 is a deficient number, since it is larger than the sum of its proper divisors (1).

856666552283 is an equidigital number, since it uses as much as digits as its factorization.

856666552283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416000, while the sum is 62.

The spelling of 856666552283 in words is "eight hundred fifty-six billion, six hundred sixty-six million, five hundred fifty-two thousand, two hundred eighty-three".