82216077946 has 8 divisors (see below), whose sum is σ = 123540097824. Its totient is φ = 41036045340.

The previous prime is 82216077941. The next prime is 82216077949. The reversal of 82216077946 is 64977061228.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 82216077893 and 82216077902.

It is not an unprimeable number, because it can be changed into a prime (82216077941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35995390 + ... + 35997673.

It is an arithmetic number, because the mean of its divisors is an integer number (15442512228).

Almost surely, 2^82216077946 is an apocalyptic number.

82216077946 is a deficient number, since it is larger than the sum of its proper divisors (41324019878).

82216077946 is a wasteful number, since it uses less digits than its factorization.

82216077946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71993636.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 82216077946 in words is "eighty-two billion, two hundred sixteen million, seventy-seven thousand, nine hundred forty-six".