78850166 has 16 divisors (see below), whose sum is σ = 120086064. Its totient is φ = 38824704.

The previous prime is 78850153. The next prime is 78850201. The reversal of 78850166 is 66105887.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71330 + ... + 72426.

It is an arithmetic number, because the mean of its divisors is an integer number (7505379).

Almost surely, 2^78850166 is an apocalyptic number.

78850166 is a deficient number, since it is larger than the sum of its proper divisors (41235898).

78850166 is a wasteful number, since it uses less digits than its factorization.

78850166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 78850166 is about 8879.7615958988. The cubic root of 78850166 is about 428.8125993817.

The spelling of 78850166 in words is "seventy-eight million, eight hundred fifty thousand, one hundred sixty-six".