12258032656 has 45 divisors (see below), whose sum is σ = 24097272253. Its totient is φ = 6040664960.

The previous prime is 12258032653. The next prime is 12258032663. The reversal of 12258032656 is 65623085221.

It is a happy number.

The square root of 12258032656 is 110716.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2353802256 + 9904230400 = 48516^2 + 99520^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12258032651) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 39414741 + ... + 39415051.

Almost surely, 2^12258032656 is an apocalyptic number.

12258032656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

12258032656 is the 110716-th square number.

It is an amenable number.

12258032656 is a deficient number, since it is larger than the sum of its proper divisors (11839239597).

12258032656 is an frugal number, since it uses more digits than its factorization.

12258032656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

It can be divided in two parts, 122580 and 32656, that added together give a square (155236 = 394²).

The spelling of 12258032656 in words is "twelve billion, two hundred fifty-eight million, thirty-two thousand, six hundred fifty-six".