66565048 has 16 divisors (see below), whose sum is σ = 136155960. Its totient is φ = 30256800.

The previous prime is 66565043. The next prime is 66565061. The reversal of 66565048 is 84056566.

It is a self number, because there is not a number n which added to its sum of digits gives 66565048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66565043) 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, 378123 + ... + 378298.

Almost surely, 2^66565048 is an apocalyptic number.

It is an amenable number.

66565048 is an abundant number, since it is smaller than the sum of its proper divisors (69590912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66565048 is a wasteful number, since it uses less digits than its factorization.

66565048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756438 (or 756434 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 66565048 is about 8158.7405890860. The cubic root of 66565048 is about 405.2740065188.

The spelling of 66565048 in words is "sixty-six million, five hundred sixty-five thousand, forty-eight".