126081806336 has 104 divisors (see below), whose sum is σ = 269050759920. Its totient is φ = 58902183936.

The previous prime is 126081806329. The next prime is 126081806353. The reversal of 126081806336 is 633608180621.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5670056 + ... + 5692248.

Almost surely, 2^126081806336 is an apocalyptic number.

126081806336 is a gapful number since it is divisible by the number (16) 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 126081806336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134525379960).

126081806336 is an abundant number, since it is smaller than the sum of its proper divisors (142968953584).

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

126081806336 is an equidigital number, since it uses as much as digits as its factorization.

126081806336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22309 (or 22287 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

Adding to 126081806336 its reverse (633608180621), we get a palindrome (759689986957).

The spelling of 126081806336 in words is "one hundred twenty-six billion, eighty-one million, eight hundred six thousand, three hundred thirty-six".