81282164202315 has 24 divisors (see below), whose sum is σ = 141342104206368. Its totient is φ = 43211096931840.

The previous prime is 81282164202299. The next prime is 81282164202377. The reversal of 81282164202315 is 51320246128218.

81282164202315 is a `hidden beast` number, since 8 + 1 + 2 + 8 + 216 + 420 + 2 + 3 + 1 + 5 = 666.

It is not a de Polignac number, because 81282164202315 - 2⁴ = 81282164202299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2903957574 + ... + 2903985563.

It is an arithmetic number, because the mean of its divisors is an integer number (5889254341932).

Almost surely, 2^{81282164202315} is an apocalyptic number.

81282164202315 is a deficient number, since it is larger than the sum of its proper divisors (60059940004053).

81282164202315 is a wasteful number, since it uses less digits than its factorization.

81282164202315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5807943459 (or 5807943456 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 81282164202315 in words is "eighty-one trillion, two hundred eighty-two billion, one hundred sixty-four million, two hundred two thousand, three hundred fifteen".