66246674 has 8 divisors (see below), whose sum is σ = 107013900. Its totient is φ = 30575376.

The previous prime is 66246667. The next prime is 66246679. The reversal of 66246674 is 47664266.

66246674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47018449 + 19228225 = 6857^2 + 4385^2 .

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

It is not an unprimeable number, because it can be changed into a prime (66246679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273949 + ... + 1274000.

Almost surely, 2^66246674 is an apocalyptic number.

66246674 is a deficient number, since it is larger than the sum of its proper divisors (40767226).

66246674 is a wasteful number, since it uses less digits than its factorization.

66246674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547964.

The product of its digits is 290304, while the sum is 41.

The square root of 66246674 is about 8139.2059809296. The cubic root of 66246674 is about 404.6268452368.

The spelling of 66246674 in words is "sixty-six million, two hundred forty-six thousand, six hundred seventy-four".