126100115065520 has 20 divisors (see below), whose sum is σ = 293182767527520. Its totient is φ = 50440046026176.

The previous prime is 126100115065469. The next prime is 126100115065541. The reversal of 126100115065520 is 25560511001621.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788125719080 + ... + 788125719239.

It is an arithmetic number, because the mean of its divisors is an integer number (14659138376376).

Almost surely, 2^{126100115065520} is an apocalyptic number.

126100115065520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126100115065520 is an abundant number, since it is smaller than the sum of its proper divisors (167082652462000).

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

126100115065520 is a wasteful number, since it uses less digits than its factorization.

126100115065520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576251438332 (or 1576251438326 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 35.

The spelling of 126100115065520 in words is "one hundred twenty-six trillion, one hundred billion, one hundred fifteen million, sixty-five thousand, five hundred twenty".