999993947656032 has 144 divisors (see below), whose sum is σ = 3249990061063200. Its totient is φ = 285711700985856.

The previous prime is 999993947656009. The next prime is 999993947656057. The reversal of 999993947656032 is 230656749399999.

999993947656032 is a `hidden beast` number, since 9 + 9 + 9 + 9 + 9 + 3 + 9 + 4 + 7 + 6 + 560 + 32 = 666.

999993947656032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1021923348 + ... + 1022901420.

It is an arithmetic number, because the mean of its divisors is an integer number (22569375424050).

Almost surely, 2^{999993947656032} is an apocalyptic number.

It is an amenable number.

999993947656032 is an abundant number, since it is smaller than the sum of its proper divisors (2249996113407168).

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

999993947656032 is a wasteful number, since it uses less digits than its factorization.

999993947656032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485245 (or 1485234 counting only the distinct ones).

The product of its (nonzero) digits is 48212327520, while the sum is 90.

The spelling of 999993947656032 in words is "nine hundred ninety-nine trillion, nine hundred ninety-three billion, nine hundred forty-seven million, six hundred fifty-six thousand, thirty-two".