82316665302644 has 12 divisors (see below), whose sum is σ = 144059824072164. Its totient is φ = 41156715567744.

The previous prime is 82316665302617. The next prime is 82316665302691. The reversal of 82316665302644 is 44620356661328.

It can be written as a sum of positive squares in 2 ways, for example, as 32442843923044 + 49873821379600 = 5695862^2 + 7062140^2 .

It is a super-2 number, since 2×82316665302644² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82316665302644.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404156357 + ... + 404359980.

It is an arithmetic number, because the mean of its divisors is an integer number (12004985339347).

Almost surely, 2^{82316665302644} is an apocalyptic number.

It is an amenable number.

82316665302644 is a deficient number, since it is larger than the sum of its proper divisors (61743158769520).

82316665302644 is a wasteful number, since it uses less digits than its factorization.

82316665302644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808541794 (or 808541792 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 56.

The spelling of 82316665302644 in words is "eighty-two trillion, three hundred sixteen billion, six hundred sixty-five million, three hundred two thousand, six hundred forty-four".