80700166 has 4 divisors (see below), whose sum is σ = 121050252. Its totient is φ = 40350082.

The previous prime is 80700157. The next prime is 80700167. The reversal of 80700166 is 66100708.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80700167) by changing a digit.

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 as a sum of consecutive naturals, namely, 20175040 + ... + 20175043.

It is an arithmetic number, because the mean of its divisors is an integer number (30262563).

Almost surely, 2^80700166 is an apocalyptic number.

80700166 is a deficient number, since it is larger than the sum of its proper divisors (40350086).

80700166 is a wasteful number, since it uses less digits than its factorization.

80700166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40350085.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 80700166 is about 8983.3271119335. The cubic root of 80700166 is about 432.1403400636.

The spelling of 80700166 in words is "eighty million, seven hundred thousand, one hundred sixty-six".