78385011655176 has 48 divisors (see below), whose sum is σ = 212299282540800. Its totient is φ = 26127531970272.

The previous prime is 78385011655157. The next prime is 78385011655177. The reversal of 78385011655176 is 67155611058387.

78385011655176 is a `hidden beast` number, since 7 + 8 + 3 + 8 + 5 + 0 + 1 + 1 + 6 + 551 + 76 = 666.

It is a super-2 number, since 2×78385011655176² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78385011655177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14421276 + ... + 19098251.

It is an arithmetic number, because the mean of its divisors is an integer number (4422901719600).

Almost surely, 2^{78385011655176} is an apocalyptic number.

It is an amenable number.

78385011655176 is an abundant number, since it is smaller than the sum of its proper divisors (133914270885624).

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

78385011655176 is a wasteful number, since it uses less digits than its factorization.

78385011655176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33552018 (or 33552011 counting only the distinct ones).

The product of its (nonzero) digits is 42336000, while the sum is 63.

The spelling of 78385011655176 in words is "seventy-eight trillion, three hundred eighty-five billion, eleven million, six hundred fifty-five thousand, one hundred seventy-six".