123632235556 has 6 divisors (see below), whose sum is σ = 216356412230. Its totient is φ = 61816117776.

The previous prime is 123632235541. The next prime is 123632235563. The reversal of 123632235556 is 655532236321.

It can be written as a sum of positive squares in only one way, i.e., 114921000000 + 8711235556 = 339000^2 + 93334^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15454029441 + ... + 15454029448.

Almost surely, 2^123632235556 is an apocalyptic number.

It is an amenable number.

123632235556 is a deficient number, since it is larger than the sum of its proper divisors (92724176674).

123632235556 is a wasteful number, since it uses less digits than its factorization.

123632235556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30908058893 (or 30908058891 counting only the distinct ones).

The product of its digits is 972000, while the sum is 43.

The spelling of 123632235556 in words is "one hundred twenty-three billion, six hundred thirty-two million, two hundred thirty-five thousand, five hundred fifty-six".