999500053106020 has 24 divisors (see below), whose sum is σ = 2098951144327800. Its totient is φ = 399799824517632.

The previous prime is 999500053105979. The next prime is 999500053106021. The reversal of 999500053106020 is 20601350005999.

999500053106020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 440977488287296 + 558522564818724 = 20999464^2 + 23633082^2 .

It is not an unprimeable number, because it can be changed into a prime (999500053106021) 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, 33532636 + ... + 55887724.

It is an arithmetic number, because the mean of its divisors is an integer number (87456297680325).

Almost surely, 2^{999500053106020} is an apocalyptic number.

It is an amenable number.

999500053106020 is an abundant number, since it is smaller than the sum of its proper divisors (1099451091221780).

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

999500053106020 is a wasteful number, since it uses less digits than its factorization.

999500053106020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24590607 (or 24590605 counting only the distinct ones).

The product of its (nonzero) digits is 656100, while the sum is 49.

The spelling of 999500053106020 in words is "nine hundred ninety-nine trillion, five hundred billion, fifty-three million, one hundred six thousand, twenty".