82321554211 has 4 divisors (see below), whose sum is σ = 88653981472. Its totient is φ = 75989126952.

The previous prime is 82321554199. The next prime is 82321554223. The reversal of 82321554211 is 11245512328.

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

It is an interprime number because it is at equal distance from previous prime (82321554199) and next prime (82321554223).

It is a cyclic number.

It is not a de Polignac number, because 82321554211 - 2²⁵ = 82287999779 is a prime.

It is a super-2 number, since 2×82321554211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82321554251) 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, 3166213611 + ... + 3166213636.

It is an arithmetic number, because the mean of its divisors is an integer number (22163495368).

Almost surely, 2^82321554211 is an apocalyptic number.

82321554211 is a deficient number, since it is larger than the sum of its proper divisors (6332427261).

82321554211 is a wasteful number, since it uses less digits than its factorization.

82321554211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332427260.

The product of its digits is 19200, while the sum is 34.

The spelling of 82321554211 in words is "eighty-two billion, three hundred twenty-one million, five hundred fifty-four thousand, two hundred eleven".