126430252056 has 128 divisors (see below), whose sum is σ = 363475512000. Its totient is φ = 40671138816.

The previous prime is 126430252051. The next prime is 126430252079. The reversal of 126430252056 is 650252034621.

126430252056 is a `hidden beast` number, since 1 + 2 + 643 + 0 + 2 + 5 + 2 + 0 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 126430252056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126430252051) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 20398750 + ... + 20404946.

Almost surely, 2^126430252056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126430252056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181737756000).

126430252056 is an abundant number, since it is smaller than the sum of its proper divisors (237045259944).

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

126430252056 is a wasteful number, since it uses less digits than its factorization.

126430252056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9498 (or 9488 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 126430252056 its reverse (650252034621), we get a palindrome (776682286677).

The spelling of 126430252056 in words is "one hundred twenty-six billion, four hundred thirty million, two hundred fifty-two thousand, fifty-six".