66740048 has 20 divisors (see below), whose sum is σ = 129658368. Its totient is φ = 33279840.

The previous prime is 66740041. The next prime is 66740053. The reversal of 66740048 is 84004766.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66740041) 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, 683 + ... + 11573.

Almost surely, 2^66740048 is an apocalyptic number.

It is an amenable number.

66740048 is a deficient number, since it is larger than the sum of its proper divisors (62918320).

66740048 is a wasteful number, since it uses less digits than its factorization.

66740048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11282 (or 11276 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 66740048 is about 8169.4582439719. The cubic root of 66740048 is about 405.6288518497.

The spelling of 66740048 in words is "sixty-six million, seven hundred forty thousand, forty-eight".