66560236 has 24 divisors (see below), whose sum is σ = 124616016. Its totient is φ = 30996480.

The previous prime is 66560227. The next prime is 66560239. The reversal of 66560236 is 63206566.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (66560239) 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, 1551 + ... + 11641.

It is an arithmetic number, because the mean of its divisors is an integer number (5192334).

Almost surely, 2^66560236 is an apocalyptic number.

It is an amenable number.

66560236 is a deficient number, since it is larger than the sum of its proper divisors (58055780).

66560236 is a wasteful number, since it uses less digits than its factorization.

66560236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10209 (or 10207 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 66560236 is about 8158.4456853006. The cubic root of 66560236 is about 405.2642405051.

The spelling of 66560236 in words is "sixty-six million, five hundred sixty thousand, two hundred thirty-six".