126118904820 has 24 divisors (see below), whose sum is σ = 353132933664. Its totient is φ = 33631707936.

The previous prime is 126118904713. The next prime is 126118904827. The reversal of 126118904820 is 28409811621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126118904827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1050990814 + ... + 1050990933.

It is an arithmetic number, because the mean of its divisors is an integer number (14713872236).

Almost surely, 2^126118904820 is an apocalyptic number.

126118904820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126118904820 is an abundant number, since it is smaller than the sum of its proper divisors (227014028844).

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

126118904820 is a wasteful number, since it uses less digits than its factorization.

126118904820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101981759 (or 2101981757 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The spelling of 126118904820 in words is "one hundred twenty-six billion, one hundred eighteen million, nine hundred four thousand, eight hundred twenty".