778048652166 has 8 divisors (see below), whose sum is σ = 1556097304344. Its totient is φ = 259349550720.

The previous prime is 778048652123. The next prime is 778048652167. The reversal of 778048652166 is 661256840877.

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

778048652166 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (778048652167) 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, 64837387675 + ... + 64837387686.

It is an arithmetic number, because the mean of its divisors is an integer number (194512163043).

Almost surely, 2^778048652166 is an apocalyptic number.

778048652166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

778048652166 is a wasteful number, since it uses less digits than its factorization.

778048652166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129674775366.

The product of its (nonzero) digits is 27095040, while the sum is 60.

The spelling of 778048652166 in words is "seven hundred seventy-eight billion, forty-eight million, six hundred fifty-two thousand, one hundred sixty-six".