82866033790055 has 16 divisors (see below), whose sum is σ = 101824513190400. Its totient is φ = 64704849275808.

The previous prime is 82866033790013. The next prime is 82866033790081. The reversal of 82866033790055 is 55009733066828.

It is a cyclic number.

It is not a de Polignac number, because 82866033790055 - 2¹⁸ = 82866033527911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82866033790055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137448827 + ... + 138050396.

It is an arithmetic number, because the mean of its divisors is an integer number (6364032074400).

Almost surely, 2^{82866033790055} is an apocalyptic number.

82866033790055 is a deficient number, since it is larger than the sum of its proper divisors (18958479400345).

82866033790055 is a wasteful number, since it uses less digits than its factorization.

82866033790055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275500670.

The product of its (nonzero) digits is 65318400, while the sum is 62.

The spelling of 82866033790055 in words is "eighty-two trillion, eight hundred sixty-six billion, thirty-three million, seven hundred ninety thousand, fifty-five".