126243641116656 has 100 divisors (see below), whose sum is σ = 417583684182192. Its totient is φ = 36069611745024.

The previous prime is 126243641116603. The next prime is 126243641116657. The reversal of 126243641116656 is 656611146342621.

126243641116656 is a `hidden beast` number, since 1 + 2 + 6 + 2 + 436 + 41 + 1 + 166 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126243641116657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6957863565 + ... + 6957881708.

Almost surely, 2^{126243641116656} is an apocalyptic number.

126243641116656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

126243641116656 is an abundant number, since it is smaller than the sum of its proper divisors (291340043065536).

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

126243641116656 is a wasteful number, since it uses less digits than its factorization.

126243641116656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13915745300 (or 13915745285 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 126243641116656 in words is "one hundred twenty-six trillion, two hundred forty-three billion, six hundred forty-one million, one hundred sixteen thousand, six hundred fifty-six".