80666007 has 8 divisors (see below), whose sum is σ = 107646576. Its totient is φ = 53731392.

The previous prime is 80665997. The next prime is 80666021. The reversal of 80666007 is 70066608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80666007 - 2⁶ = 80665943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80666107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7158 + ... + 14579.

It is an arithmetic number, because the mean of its divisors is an integer number (13455822).

Almost surely, 2^80666007 is an apocalyptic number.

80666007 is a deficient number, since it is larger than the sum of its proper divisors (26980569).

80666007 is a wasteful number, since it uses less digits than its factorization.

80666007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22977.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 80666007 is about 8981.4256663405. The cubic root of 80666007 is about 432.0793589204.

The spelling of 80666007 in words is "eighty million, six hundred sixty-six thousand, seven".