66560296 has 32 divisors (see below), whose sum is σ = 136886400. Its totient is φ = 30090240.

The previous prime is 66560293. The next prime is 66560309. The reversal of 66560296 is 69206566.

It is not an unprimeable number, because it can be changed into a prime (66560293) 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, 15025 + ... + 18943.

It is an arithmetic number, because the mean of its divisors is an integer number (4277700).

Almost surely, 2^66560296 is an apocalyptic number.

It is an amenable number.

66560296 is an abundant number, since it is smaller than the sum of its proper divisors (70326104).

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

66560296 is a wasteful number, since it uses less digits than its factorization.

66560296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4129 (or 4125 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 66560296 is about 8158.4493624708. The cubic root of 66560296 is about 405.2643622787.

The spelling of 66560296 in words is "sixty-six million, five hundred sixty thousand, two hundred ninety-six".