83078647758664 has 16 divisors (see below), whose sum is σ = 158326111508220. Its totient is φ = 40858351356480.

The previous prime is 83078647758653. The next prime is 83078647758683. The reversal of 83078647758664 is 46685774687038.

It can be written as a sum of positive squares in 2 ways, for example, as 82620646368100 + 458001390564 = 9089590^2 + 676758^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85121564839 + ... + 85121565814.

Almost surely, 2^{83078647758664} is an apocalyptic number.

It is an amenable number.

83078647758664 is a deficient number, since it is larger than the sum of its proper divisors (75247463749556).

83078647758664 is a wasteful number, since it uses less digits than its factorization.

83078647758664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170243130720 (or 170243130716 counting only the distinct ones).

The product of its (nonzero) digits is 9103933440, while the sum is 79.

The spelling of 83078647758664 in words is "eighty-three trillion, seventy-eight billion, six hundred forty-seven million, seven hundred fifty-eight thousand, six hundred sixty-four".