66560368 has 40 divisors (see below), whose sum is σ = 150177888. Its totient is φ = 27985152.

The previous prime is 66560357. The next prime is 66560369. The reversal of 66560368 is 86306566.

It is a self number, because there is not a number n which added to its sum of digits gives 66560368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66560369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330 + ... + 11542.

Almost surely, 2^66560368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66560368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75088944).

66560368 is an abundant number, since it is smaller than the sum of its proper divisors (83617520).

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

66560368 is a wasteful number, since it uses less digits than its factorization.

66560368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11281 (or 11275 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 66560368 is about 8158.4537750728. The cubic root of 66560368 is about 405.2645084070.

The spelling of 66560368 in words is "sixty-six million, five hundred sixty thousand, three hundred sixty-eight".