82116012 has 24 divisors (see below), whose sum is σ = 209022912. Its totient is φ = 24883600.

The previous prime is 82116011. The next prime is 82116031. The reversal of 82116012 is 21061128.

It is a self number, because there is not a number n which added to its sum of digits gives 82116012.

It is not an unprimeable number, because it can be changed into a prime (82116011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310914 + ... + 311177.

It is an arithmetic number, because the mean of its divisors is an integer number (8709288).

Almost surely, 2^82116012 is an apocalyptic number.

It is an amenable number.

82116012 is an abundant number, since it is smaller than the sum of its proper divisors (126906900).

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

82116012 is a wasteful number, since it uses less digits than its factorization.

82116012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622109 (or 622107 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 82116012 is about 9061.7885651785. The cubic root of 82116012 is about 434.6529349525.

The spelling of 82116012 in words is "eighty-two million, one hundred sixteen thousand, twelve".