126508553860 has 96 divisors (see below), whose sum is σ = 302146669440. Its totient is φ = 44107711488.

The previous prime is 126508553849. The next prime is 126508553869. The reversal of 126508553860 is 68355805621.

It is not an unprimeable number, because it can be changed into a prime (126508553869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1474872 + ... + 1558288.

It is an arithmetic number, because the mean of its divisors is an integer number (3147361140).

Almost surely, 2^126508553860 is an apocalyptic number.

126508553860 is a gapful number since it is divisible by the number (10) 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 126508553860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151073334720).

126508553860 is an abundant number, since it is smaller than the sum of its proper divisors (175638115580).

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

126508553860 is a wasteful number, since it uses less digits than its factorization.

126508553860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83765 (or 83763 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 49.

The spelling of 126508553860 in words is "one hundred twenty-six billion, five hundred eight million, five hundred fifty-three thousand, eight hundred sixty".