81676064130094 has 64 divisors (see below), whose sum is σ = 145193365578240. Its totient is φ = 33715630408320.

The previous prime is 81676064130083. The next prime is 81676064130151. The reversal of 81676064130094 is 49003146067618.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 280718497 + ... + 281009299.

It is an arithmetic number, because the mean of its divisors is an integer number (2268646337160).

Almost surely, 2^{81676064130094} is an apocalyptic number.

81676064130094 is a deficient number, since it is larger than the sum of its proper divisors (63517301448146).

81676064130094 is a wasteful number, since it uses less digits than its factorization.

81676064130094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292505.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 81676064130094 in words is "eighty-one trillion, six hundred seventy-six billion, sixty-four million, one hundred thirty thousand, ninety-four".