66544048 has 30 divisors (see below), whose sum is σ = 132353012. Its totient is φ = 32393760.

The previous prime is 66544031. The next prime is 66544139. The reversal of 66544048 is 84044566.

It is a super-2 number, since 2×66544048² = 8856220648452608, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66543998 and 66544016.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213813 + ... + 214123.

Almost surely, 2^66544048 is an apocalyptic number.

It is an amenable number.

66544048 is a deficient number, since it is larger than the sum of its proper divisors (65808964).

66544048 is an equidigital number, since it uses as much as digits as its factorization.

66544048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 66544048 is about 8157.4535242317. The cubic root of 66544048 is about 405.2313833027.

The spelling of 66544048 in words is "sixty-six million, five hundred forty-four thousand, forty-eight".