681466667334 has 32 divisors (see below), whose sum is σ = 1380258731520. Its totient is φ = 224268294432.

The previous prime is 681466667327. The next prime is 681466667347. The reversal of 681466667334 is 433766664186.

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 15 ways as a sum of consecutive naturals, for example, 16456984 + ... + 16498340.

It is an arithmetic number, because the mean of its divisors is an integer number (43133085360).

Almost surely, 2^681466667334 is an apocalyptic number.

681466667334 is an abundant number, since it is smaller than the sum of its proper divisors (698792064186).

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

681466667334 is a wasteful number, since it uses less digits than its factorization.

681466667334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76204.

The product of its digits is 62705664, while the sum is 60.

The spelling of 681466667334 in words is "six hundred eighty-one billion, four hundred sixty-six million, six hundred sixty-seven thousand, three hundred thirty-four".