81366103314 has 40 divisors (see below), whose sum is σ = 182356796160. Its totient is φ = 27116611704.

The previous prime is 81366103297. The next prime is 81366103319. The reversal of 81366103314 is 41330166318.

81366103314 is a `hidden beast` number, since 8 + 1 + 3 + 6 + 610 + 3 + 31 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (81366103319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 807627 + ... + 902769.

It is an arithmetic number, because the mean of its divisors is an integer number (4558919904).

Almost surely, 2^81366103314 is an apocalyptic number.

81366103314 is an abundant number, since it is smaller than the sum of its proper divisors (100990692846).

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

81366103314 is a wasteful number, since it uses less digits than its factorization.

81366103314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100436 (or 100427 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 81366103314 in words is "eighty-one billion, three hundred sixty-six million, one hundred three thousand, three hundred fourteen".