82646460660 has 96 divisors (see below), whose sum is σ = 239507251200. Its totient is φ = 21271662720.

The previous prime is 82646460643. The next prime is 82646460667. The reversal of 82646460660 is 6606464628.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82646460667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 646321 + ... + 763559.

It is an arithmetic number, because the mean of its divisors is an integer number (2494867200).

Almost surely, 2^82646460660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82646460660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119753625600).

82646460660 is an abundant number, since it is smaller than the sum of its proper divisors (156860790540).

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

82646460660 is a wasteful number, since it uses less digits than its factorization.

82646460660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117661 (or 117659 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 82646460660 in words is "eighty-two billion, six hundred forty-six million, four hundred sixty thousand, six hundred sixty".