78666108106 has 8 divisors (see below), whose sum is σ = 118003840704. Its totient is φ = 39331494540.

The previous prime is 78666108089. The next prime is 78666108109. The reversal of 78666108106 is 60180166687.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 78666108106.

It is not an unprimeable number, because it can be changed into a prime (78666108109) 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 3 ways as a sum of consecutive naturals, for example, 715650 + ... + 818221.

It is an arithmetic number, because the mean of its divisors is an integer number (14750480088).

Almost surely, 2^78666108106 is an apocalyptic number.

78666108106 is a deficient number, since it is larger than the sum of its proper divisors (39337732598).

78666108106 is a wasteful number, since it uses less digits than its factorization.

78666108106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559516.

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 78666108106 in words is "seventy-eight billion, six hundred sixty-six million, one hundred eight thousand, one hundred six".