66343246 has 4 divisors (see below), whose sum is σ = 99514872. Its totient is φ = 33171622.

The previous prime is 66343243. The next prime is 66343259. The reversal of 66343246 is 64234366.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66343243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16585810 + ... + 16585813.

It is an arithmetic number, because the mean of its divisors is an integer number (24878718).

Almost surely, 2^66343246 is an apocalyptic number.

66343246 is a deficient number, since it is larger than the sum of its proper divisors (33171626).

66343246 is a wasteful number, since it uses less digits than its factorization.

66343246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33171625.

The product of its digits is 62208, while the sum is 34.

The square root of 66343246 is about 8145.1363401726. The cubic root of 66343246 is about 404.8233665565.

The spelling of 66343246 in words is "sixty-six million, three hundred forty-three thousand, two hundred forty-six".