66824248 has 16 divisors (see below), whose sum is σ = 125700480. Its totient is φ = 33304128.

The previous prime is 66824243. The next prime is 66824249. The reversal of 66824248 is 84242866.

It is a self number, because there is not a number n which added to its sum of digits gives 66824248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66824243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10840 + ... + 15847.

It is an arithmetic number, because the mean of its divisors is an integer number (7856280).

Almost surely, 2^66824248 is an apocalyptic number.

It is an amenable number.

66824248 is a deficient number, since it is larger than the sum of its proper divisors (58876232).

66824248 is a wasteful number, since it uses less digits than its factorization.

66824248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27006 (or 27002 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The square root of 66824248 is about 8174.6099601143. The cubic root of 66824248 is about 405.7993621475.

The spelling of 66824248 in words is "sixty-six million, eight hundred twenty-four thousand, two hundred forty-eight".