656236420232 has 16 divisors (see below), whose sum is σ = 1230500386140. Its totient is φ = 328102983936.

The previous prime is 656236420223. The next prime is 656236420241. The reversal of 656236420232 is 232024632656.

It is an interprime number because it is at equal distance from previous prime (656236420223) and next prime (656236420241).

It can be written as a sum of positive squares in 2 ways, for example, as 507590702116 + 148645718116 = 712454^2 + 385546^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 656236420232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1719053 + ... + 2065820.

Almost surely, 2^656236420232 is an apocalyptic number.

It is an amenable number.

656236420232 is a deficient number, since it is larger than the sum of its proper divisors (574263965908).

656236420232 is a wasteful number, since it uses less digits than its factorization.

656236420232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806552 (or 3806548 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 656236420232 in words is "six hundred fifty-six billion, two hundred thirty-six million, four hundred twenty thousand, two hundred thirty-two".