82501615616 has 120 divisors (see below), whose sum is σ = 189014735616. Its totient is φ = 35274424320.

The previous prime is 82501615591. The next prime is 82501615631. The reversal of 82501615616 is 61651610528.

It is a congruent number.

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, 93011525 + ... + 93012411.

Almost surely, 2^82501615616 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 82501615616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94507367808).

82501615616 is an abundant number, since it is smaller than the sum of its proper divisors (106513120000).

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

82501615616 is an frugal number, since it uses more digits than its factorization.

82501615616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733 (or 1707 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 82501615616 in words is "eighty-two billion, five hundred one million, six hundred fifteen thousand, six hundred sixteen".