82731564660 has 48 divisors (see below), whose sum is σ = 231661886400. Its totient is φ = 22060464384.

The previous prime is 82731564607. The next prime is 82731564683. The reversal of 82731564660 is 6646513728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1460751 + ... + 1516329.

It is an arithmetic number, because the mean of its divisors is an integer number (4826289300).

Almost surely, 2^82731564660 is an apocalyptic number.

It is an amenable number.

82731564660 is an abundant number, since it is smaller than the sum of its proper divisors (148930321740).

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

82731564660 is a wasteful number, since it uses less digits than its factorization.

82731564660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80400 (or 80398 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 82731564660 in words is "eighty-two billion, seven hundred thirty-one million, five hundred sixty-four thousand, six hundred sixty".