78835075166 has 4 divisors (see below), whose sum is σ = 118252612752. Its totient is φ = 39417537582.

The previous prime is 78835075147. The next prime is 78835075183. The reversal of 78835075166 is 66157053887.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66157053887 = 61 ⋅1084541867.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19708768790 + ... + 19708768793.

It is an arithmetic number, because the mean of its divisors is an integer number (29563153188).

Almost surely, 2^78835075166 is an apocalyptic number.

78835075166 is a deficient number, since it is larger than the sum of its proper divisors (39417537586).

78835075166 is a wasteful number, since it uses less digits than its factorization.

78835075166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39417537585.

The product of its (nonzero) digits is 8467200, while the sum is 56.

The spelling of 78835075166 in words is "seventy-eight billion, eight hundred thirty-five million, seventy-five thousand, one hundred sixty-six".