66733748 has 12 divisors (see below), whose sum is σ = 116844000. Its totient is φ = 33349752.

The previous prime is 66733747. The next prime is 66733781. The reversal of 66733748 is 84733766.

It is a junction number, because it is equal to n+sod(n) for n = 66733699 and 66733708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66733747) 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, 9215 + ... + 14777.

It is an arithmetic number, because the mean of its divisors is an integer number (9737000).

Almost surely, 2^66733748 is an apocalyptic number.

It is an amenable number.

66733748 is a deficient number, since it is larger than the sum of its proper divisors (50110252).

66733748 is a wasteful number, since it uses less digits than its factorization.

66733748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8566 (or 8564 counting only the distinct ones).

The product of its digits is 508032, while the sum is 44.

The square root of 66733748 is about 8169.0726523884. The cubic root of 66733748 is about 405.6160881880.

The spelling of 66733748 in words is "sixty-six million, seven hundred thirty-three thousand, seven hundred forty-eight".