126390121116 has 48 divisors (see below), whose sum is σ = 337566270720. Its totient is φ = 36055111680.

The previous prime is 126390121031. The next prime is 126390121127. The reversal of 126390121116 is 611121093621.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1119826 + ... + 1227513.

It is an arithmetic number, because the mean of its divisors is an integer number (7032630640).

Almost surely, 2^126390121116 is an apocalyptic number.

It is an amenable number.

126390121116 is an abundant number, since it is smaller than the sum of its proper divisors (211176149604).

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

126390121116 is a wasteful number, since it uses less digits than its factorization.

126390121116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347994 (or 2347992 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The spelling of 126390121116 in words is "one hundred twenty-six billion, three hundred ninety million, one hundred twenty-one thousand, one hundred sixteen".