82816356555586 has 4 divisors (see below), whose sum is σ = 124224534833382. Its totient is φ = 41408178277792.

The previous prime is 82816356555533. The next prime is 82816356555619. The reversal of 82816356555586 is 68555565361828.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72625864570561 + 10190491985025 = 8522081^2 + 3192255^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20704089138895 + ... + 20704089138898.

Almost surely, 2^{82816356555586} is an apocalyptic number.

82816356555586 is a deficient number, since it is larger than the sum of its proper divisors (41408178277796).

82816356555586 is a wasteful number, since it uses less digits than its factorization.

82816356555586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41408178277795.

The product of its digits is 2073600000, while the sum is 73.

The spelling of 82816356555586 in words is "eighty-two trillion, eight hundred sixteen billion, three hundred fifty-six million, five hundred fifty-five thousand, five hundred eighty-six".