66600273 has 8 divisors (see below), whose sum is σ = 89090848. Its totient is φ = 44254944.

The previous prime is 66600241. The next prime is 66600283. The reversal of 66600273 is 37200666.

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

It is not a de Polignac number, because 66600273 - 2⁵ = 66600241 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 66600273.

It is not an unprimeable number, because it can be changed into a prime (66600223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35236 + ... + 37077.

It is an arithmetic number, because the mean of its divisors is an integer number (11136356).

Almost surely, 2^66600273 is an apocalyptic number.

It is an amenable number.

66600273 is a deficient number, since it is larger than the sum of its proper divisors (22490575).

66600273 is a wasteful number, since it uses less digits than its factorization.

66600273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72623.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 66600273 is about 8160.8990313568. The cubic root of 66600273 is about 405.3454817644.

The spelling of 66600273 in words is "sixty-six million, six hundred thousand, two hundred seventy-three".