66148671 has 8 divisors (see below), whose sum is σ = 92840320. Its totient is φ = 41778072.

The previous prime is 66148657. The next prime is 66148673. The reversal of 66148671 is 17684166.

It is a happy number.

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

It is not a de Polignac number, because 66148671 - 2⁵ = 66148639 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 (66148673) 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, 580195 + ... + 580308.

It is an arithmetic number, because the mean of its divisors is an integer number (11605040).

Almost surely, 2^66148671 is an apocalyptic number.

66148671 is a deficient number, since it is larger than the sum of its proper divisors (26691649).

66148671 is a wasteful number, since it uses less digits than its factorization.

66148671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160525.

The product of its digits is 48384, while the sum is 39.

The square root of 66148671 is about 8133.1833251194. The cubic root of 66148671 is about 404.4272165211.

The spelling of 66148671 in words is "sixty-six million, one hundred forty-eight thousand, six hundred seventy-one".