656224146 has 16 divisors (see below), whose sum is σ = 1458276000. Its totient is φ = 218741364.

The previous prime is 656224141. The next prime is 656224171. The reversal of 656224146 is 641422656.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 656224146.

It is not an unprimeable number, because it can be changed into a prime (656224141) 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, 6076096 + ... + 6076203.

It is an arithmetic number, because the mean of its divisors is an integer number (91142250).

Almost surely, 2^656224146 is an apocalyptic number.

656224146 is an abundant number, since it is smaller than the sum of its proper divisors (802051854).

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

656224146 is a wasteful number, since it uses less digits than its factorization.

656224146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12152310 (or 12152304 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 656224146 is about 25616.8722915191. The cubic root of 656224146 is about 868.9952491107.

The spelling of 656224146 in words is "six hundred fifty-six million, two hundred twenty-four thousand, one hundred forty-six".