66080117 has 4 divisors (see below), whose sum is σ = 66196416. Its totient is φ = 65963820.

The previous prime is 66080101. The next prime is 66080137. The reversal of 66080117 is 71108066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66080117 - 2⁴ = 66080101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66080117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66080137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57293 + ... + 58434.

It is an arithmetic number, because the mean of its divisors is an integer number (16549104).

Almost surely, 2^66080117 is an apocalyptic number.

It is an amenable number.

66080117 is a deficient number, since it is larger than the sum of its proper divisors (116299).

66080117 is a wasteful number, since it uses less digits than its factorization.

66080117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116298.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 66080117 is about 8128.9677696495. The cubic root of 66080117 is about 404.2874571666.

The spelling of 66080117 in words is "sixty-six million, eighty thousand, one hundred seventeen".