656146136 has 16 divisors (see below), whose sum is σ = 1230910800. Its totient is φ = 327903264.

The previous prime is 656146129. The next prime is 656146157. The reversal of 656146136 is 631641656.

It is a self number, because there is not a number n which added to its sum of digits gives 656146136.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3980 + ... + 36443.

It is an arithmetic number, because the mean of its divisors is an integer number (76931925).

Almost surely, 2^656146136 is an apocalyptic number.

It is an amenable number.

656146136 is a deficient number, since it is larger than the sum of its proper divisors (574764664).

656146136 is a wasteful number, since it uses less digits than its factorization.

656146136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42458 (or 42454 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 656146136 is about 25615.3496169777. The cubic root of 656146136 is about 868.9608132115.

The spelling of 656146136 in words is "six hundred fifty-six million, one hundred forty-six thousand, one hundred thirty-six".