82646646220244 has 24 divisors (see below), whose sum is σ = 153177833185440. Its totient is φ = 38908237058784.

The previous prime is 82646646220241. The next prime is 82646646220249. The reversal of 82646646220244 is 44202264664628.

It is a self number, because there is not a number n which added to its sum of digits gives 82646646220244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82646646220241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3335741819 + ... + 3335766594.

It is an arithmetic number, because the mean of its divisors is an integer number (6382409716060).

Almost surely, 2^{82646646220244} is an apocalyptic number.

It is an amenable number.

82646646220244 is a deficient number, since it is larger than the sum of its proper divisors (70531186965196).

82646646220244 is a wasteful number, since it uses less digits than its factorization.

82646646220244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6671508599 (or 6671508597 counting only the distinct ones).

The product of its (nonzero) digits is 42467328, while the sum is 56.

The spelling of 82646646220244 in words is "eighty-two trillion, six hundred forty-six billion, six hundred forty-six million, two hundred twenty thousand, two hundred forty-four".