82640210217216 has 72 divisors (see below), whose sum is σ = 219945158553120. Its totient is φ = 27546526027776.

The previous prime is 82640210217161. The next prime is 82640210217221. The reversal of 82640210217216 is 61271201204628.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124868556 + ... + 125528628.

Almost surely, 2^{82640210217216} is an apocalyptic number.

It is an amenable number.

82640210217216 is an abundant number, since it is smaller than the sum of its proper divisors (137304948335904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82640210217216 is a wasteful number, since it uses less digits than its factorization.

82640210217216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823111 (or 823097 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 82640210217216 in words is "eighty-two trillion, six hundred forty billion, two hundred ten million, two hundred seventeen thousand, two hundred sixteen".