66496242 has 16 divisors (see below), whose sum is σ = 133288992. Its totient is φ = 22116000.

The previous prime is 66496229. The next prime is 66496247. The reversal of 66496242 is 24269466.

It is a self number, because there is not a number n which added to its sum of digits gives 66496242.

It is not an unprimeable number, because it can be changed into a prime (66496247) 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, 9384 + ... + 14867.

It is an arithmetic number, because the mean of its divisors is an integer number (8330562).

Almost surely, 2^66496242 is an apocalyptic number.

66496242 is an abundant number, since it is smaller than the sum of its proper divisors (66792750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66496242 is a wasteful number, since it uses less digits than its factorization.

66496242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24713.

The product of its digits is 124416, while the sum is 39.

The square root of 66496242 is about 8154.5227941309. The cubic root of 66496242 is about 405.1343191119.

The spelling of 66496242 in words is "sixty-six million, four hundred ninety-six thousand, two hundred forty-two".