126501031368 has 256 divisors, whose sum is σ = 362777184000. Its totient is φ = 41340948480.

The previous prime is 126501031337. The next prime is 126501031381. The reversal of 126501031368 is 863130105621.

126501031368 is a `hidden beast` number, since 1 + 265 + 0 + 1 + 0 + 31 + 368 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 222321388 + ... + 222321956.

It is an arithmetic number, because the mean of its divisors is an integer number (1417098375).

Almost surely, 2^126501031368 is an apocalyptic number.

126501031368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126501031368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181388592000).

126501031368 is an abundant number, since it is smaller than the sum of its proper divisors (236276152632).

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

126501031368 is an equidigital number, since it uses as much as digits as its factorization.

126501031368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 126501031368 its reverse (863130105621), we get a palindrome (989631136989).

The spelling of 126501031368 in words is "one hundred twenty-six billion, five hundred one million, thirty-one thousand, three hundred sixty-eight".