82316856603643 has 4 divisors (see below), whose sum is σ = 82316945455360. Its totient is φ = 82316767751928.

The previous prime is 82316856603571. The next prime is 82316856603677. The reversal of 82316856603643 is 34630665861328.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82316856603643 - 2⁹ = 82316856603131 is a prime.

It is a super-2 number, since 2×82316856603643² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82316856903643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43021380 + ... + 44894017.

It is an arithmetic number, because the mean of its divisors is an integer number (20579236363840).

Almost surely, 2^{82316856603643} is an apocalyptic number.

82316856603643 is a deficient number, since it is larger than the sum of its proper divisors (88851717).

82316856603643 is an equidigital number, since it uses as much as digits as its factorization.

82316856603643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88851716.

The product of its (nonzero) digits is 89579520, while the sum is 61.

The spelling of 82316856603643 in words is "eighty-two trillion, three hundred sixteen billion, eight hundred fifty-six million, six hundred three thousand, six hundred forty-three".