80166671 has 6 divisors (see below), whose sum is σ = 86807880. Its totient is φ = 73999848.

The previous prime is 80166641. The next prime is 80166683. The reversal of 80166671 is 17666108.

It is not a de Polignac number, because 80166671 - 2²² = 75972367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80166601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237011 + ... + 237348.

It is an arithmetic number, because the mean of its divisors is an integer number (14467980).

Almost surely, 2^80166671 is an apocalyptic number.

80166671 is a deficient number, since it is larger than the sum of its proper divisors (6641209).

80166671 is a wasteful number, since it uses less digits than its factorization.

80166671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474385 (or 474372 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 80166671 is about 8953.5842543643. The cubic root of 80166671 is about 431.1859652594.

The spelling of 80166671 in words is "eighty million, one hundred sixty-six thousand, six hundred seventy-one".