66243046 has 8 divisors (see below), whose sum is σ = 100389240. Its totient is φ = 32779968.

The previous prime is 66243041. The next prime is 66243049. The reversal of 66243046 is 64034266.

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

It is a super-2 number, since 2×66243046² = 8776282286716232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66242999 and 66243017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66243041) 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, 170536 + ... + 170923.

It is an arithmetic number, because the mean of its divisors is an integer number (12548655).

Almost surely, 2^66243046 is an apocalyptic number.

66243046 is a deficient number, since it is larger than the sum of its proper divisors (34146194).

66243046 is a wasteful number, since it uses less digits than its factorization.

66243046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341558.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 66243046 is about 8138.9831060151. The cubic root of 66243046 is about 404.6194586371.

The spelling of 66243046 in words is "sixty-six million, two hundred forty-three thousand, forty-six".