656222200 has 48 divisors (see below), whose sum is σ = 1592063280. Its totient is φ = 251074560.

The previous prime is 656222159. The next prime is 656222213. The reversal of 656222200 is 2222656.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66729 + ... + 75928.

It is an arithmetic number, because the mean of its divisors is an integer number (33167985).

Almost surely, 2^656222200 is an apocalyptic number.

It is an amenable number.

656222200 is an abundant number, since it is smaller than the sum of its proper divisors (935841080).

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

656222200 is a wasteful number, since it uses less digits than its factorization.

656222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142696 (or 142687 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 656222200 is about 25616.8343087119. The cubic root of 656222200 is about 868.9943901225.

Adding to 656222200 its reverse (2222656), we get a palindrome (658444856).

The spelling of 656222200 in words is "six hundred fifty-six million, two hundred twenty-two thousand, two hundred".