82381018687616 has 64 divisors (see below), whose sum is σ = 179055443570400. Its totient is φ = 37442330634240.

The previous prime is 82381018687613. The next prime is 82381018687651. The reversal of 82381018687616 is 61678681018328.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (82381018687613) 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, 11929196 + ... + 17523348.

Almost surely, 2^{82381018687616} is an apocalyptic number.

It is an amenable number.

82381018687616 is an abundant number, since it is smaller than the sum of its proper divisors (96674424882784).

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

82381018687616 is a wasteful number, since it uses less digits than its factorization.

82381018687616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5604637 (or 5604625 counting only the distinct ones).

The product of its (nonzero) digits is 37158912, while the sum is 65.

The spelling of 82381018687616 in words is "eighty-two trillion, three hundred eighty-one billion, eighteen million, six hundred eighty-seven thousand, six hundred sixteen".