66277270 has 8 divisors (see below), whose sum is σ = 119299104. Its totient is φ = 26510904.

The previous prime is 66277261. The next prime is 66277273. The reversal of 66277270 is 7277266.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66277273) 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 3 ways as a sum of consecutive naturals, for example, 3313854 + ... + 3313873.

It is an arithmetic number, because the mean of its divisors is an integer number (14912388).

Almost surely, 2^66277270 is an apocalyptic number.

66277270 is a deficient number, since it is larger than the sum of its proper divisors (53021834).

66277270 is a wasteful number, since it uses less digits than its factorization.

66277270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6627734.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 66277270 is about 8141.0853084831. The cubic root of 66277270 is about 404.6891278985.

The spelling of 66277270 in words is "sixty-six million, two hundred seventy-seven thousand, two hundred seventy".