65220700 has 18 divisors (see below), whose sum is σ = 141529136. Its totient is φ = 26088240.

The previous prime is 65220697. The next prime is 65220703. The reversal of 65220700 is 702256.

65220700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (65220697) and next prime (65220703).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65220703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 326004 + ... + 326203.

Almost surely, 2^65220700 is an apocalyptic number.

It is an amenable number.

65220700 is an abundant number, since it is smaller than the sum of its proper divisors (76308436).

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

65220700 is a wasteful number, since it uses less digits than its factorization.

65220700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652221 (or 652214 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 65220700 is about 8075.9333825880. The cubic root of 65220700 is about 402.5271254690.

Adding to 65220700 its reverse (702256), we get a palindrome (65922956).

The spelling of 65220700 in words is "sixty-five million, two hundred twenty thousand, seven hundred".