80167816 has 8 divisors (see below), whose sum is σ = 150314670. Its totient is φ = 40083904.

The previous prime is 80167799. The next prime is 80167817. The reversal of 80167816 is 61876108.

It can be written as a sum of positive squares in only one way, i.e., 80030916 + 136900 = 8946^2 + 370^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (80167817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010481 + ... + 5010496.

Almost surely, 2^80167816 is an apocalyptic number.

It is an amenable number.

80167816 is a deficient number, since it is larger than the sum of its proper divisors (70146854).

80167816 is a wasteful number, since it uses less digits than its factorization.

80167816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10020983 (or 10020979 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 80167816 is about 8953.6481950097. The cubic root of 80167816 is about 431.1880180891.

The spelling of 80167816 in words is "eighty million, one hundred sixty-seven thousand, eight hundred sixteen".