65220008 has 32 divisors (see below), whose sum is σ = 147115200. Its totient is φ = 26479872.

The previous prime is 65219969. The next prime is 65220017. The reversal of 65220008 is 80002256.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29585 + ... + 31712.

It is an arithmetic number, because the mean of its divisors is an integer number (4597350).

Almost surely, 2^65220008 is an apocalyptic number.

It is an amenable number.

65220008 is an abundant number, since it is smaller than the sum of its proper divisors (81895192).

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

65220008 is a wasteful number, since it uses less digits than its factorization.

65220008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61329 (or 61325 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 65220008 is about 8075.8905391294. The cubic root of 65220008 is about 402.5257018424.

The spelling of 65220008 in words is "sixty-five million, two hundred twenty thousand, eight".