82122783121516 has 24 divisors (see below), whose sum is σ = 149965430076000. Its totient is φ = 39275567075712.

The previous prime is 82122783121471. The next prime is 82122783121537. The reversal of 82122783121516 is 61512138722128.

It is a self number, because there is not a number n which added to its sum of digits gives 82122783121516.

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, 474360 + ... + 12824608.

It is an arithmetic number, because the mean of its divisors is an integer number (6248559586500).

Almost surely, 2^{82122783121516} is an apocalyptic number.

It is an amenable number.

82122783121516 is a deficient number, since it is larger than the sum of its proper divisors (67842646954484).

82122783121516 is a wasteful number, since it uses less digits than its factorization.

82122783121516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12422553 (or 12422551 counting only the distinct ones).

The product of its digits is 645120, while the sum is 49.

The spelling of 82122783121516 in words is "eighty-two trillion, one hundred twenty-two billion, seven hundred eighty-three million, one hundred twenty-one thousand, five hundred sixteen".